[SPZ2-6016] [1.0.0-beta2] repeatable crash on loading saved game | Shapez 2 | Page 1

thick panther Mar 24, 2026, 12:09 AM

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My saved game worked two days ago, but today it crashes immediately on loading, after getting to the map and letting me move the map for a second or so.

It says to attach a "minimal savegame" but I'm not sure how best to do that. I've zipped up the most recent file in my Saved Games folder.

📎 Player.log 📎 savegame.zip

pine lanternBOT Mar 24, 2026, 12:09 AM

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Thank you for reporting this bug! Our team will review your report soon.
Feel free to add more details in follow-up messages — we're also scanning for duplicate reports automatically now.
📨 There are currently 17 reports awaiting team review. Due to the high volume, it may take a little longer for us to get to yours.

💾 Savegame files (.spz2) are very helpful if relevant to the issue!
Export via Main Menu → Play → click the download icon on the relevant savegame.
You can also find them here:
• Windows: %USERPROFILE%/AppData/LocalLow/tobspr Games/shapez 2/

pine lanternBOT Mar 24, 2026, 12:09 AM

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thick panther My saved game worked two days ago, but today it crashes immediately on loading, ...

📋 Log File Analysis

Log Analysis (Player.log):

System.Exception: A background savegame failed to load in BackgroundSavegameOptionsFactory.PrepareExistingMenuSavegame because the menu savegame version 1129 is below the minimum supported version 1130.

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1. [SPZ2-5906] — 🔥 95% similar

Laptop experiences a game crash on certification tutorial.
QA • Priority: High • Fix: None • Game: 1.0.0-alpha5-rc2

shapez 2 crashes randomly during the Certification phase, freezing and displaying a crash error window before becoming unresponsive. Log analysis reveals two errors: a savegame failing to load due to a version below the minimum supported, and an exception in achievement logic when leveling up a research upgrade. The crashes may be related to the user running DirectX 12, as switching to DirectX 11 was suggested as a workaround. The expected behavior is that the game runs without crashing durin...

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2. [SPZ2-5429] — ✨ 80% similar

'Object is null' error log present on console when launching save
To Do • Priority: Highest • Fix: Post 1.0 • Game: 1.0.0-dev

When loading a Savegame from Manufacture Mode, an "Object is null" error appears in the console related to ExtractorState deserialization. The issue occurs because Mini-Miners placed on inactive Extraction Spots are deserialized before Miner Booster Space Platforms are loaded, causing some Mini-Miners to lack simulation state. This is caused by non-deterministic map deserialization order that doesn't account for dependencies in systems using pattern matching like chained Mini-Miners. The erro...

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3. [SPZ2-5239] — ✨ 75% similar

Old saves are unlocked on Milestone 0
Done • Priority: High • Fix: None • Game: 0.1.0-pre8-dev • Resolution: Won't Fix

Old savegames from previous versions load with all structures blocked and reset to Milestone 0, even though shapes are already counted toward goals. This occurs specifically in Classic Mode when loading saves from earlier game versions. The issue is caused by renamed milestones in the game's progression system, resulting in a version mismatch that prevents proper milestone recognition. Players expect their savegames to load at the correct milestone level matching their actual progress. This w...

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4. [SPZ2-4306] — 👀 65% similar

System.Exception at TrainNavigationSerializer.DeserializeWagonStateId when loading attached save
Done • Priority: Highest • Fix: Dimension Update [0.1.0] • Game: 0.1.0-pre2-rc1 • Resolution: Done

Loading a savegame crashes with a System.Exception in TrainNavigationSerializer.DeserializeWagonStateId. The crash occurs when attempting to load a savegame that was created in a previous build, saved, and then reloaded. The root cause was identified as flipped rail loops causing serialization issues with train wagon state data. The crash prevents the savegame from loading entirely. This has been fixed in the latest master build.

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5. [SPZ2-2405] — 👀 60% similar

Fatal Error when Loading a savegame on the same build
Done • Priority: High • Fix: 4 - Early Access • Resolution: Done

Fatal Error occurs when loading a Savegame on the same build version. The issue manifests in two ways: first, the menu background Savegame fails to load because its version (1032) is below the minimum supported (1051); second, backup Savegames fail with a "Bad division: Cannot safely divide 400 by 150" error in BeltLanePresets. This error prevents the Game from initializing entirely. The issue occurred twice on Savegames without using cheats and has been marked as fixed.

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6. [SPZ2-3053] — 👀 58% similar

Fatal Error: Savegame does not load (from Friday)
Done • Priority: Highest • Fix: 4 - Early Access • Game: 0.0.0-alpha23.1 • Resolution: Done

Savegame files from Friday with 100% completion fail to load with fatal errors. The issue occurs when trying to load these saves, with errors indicating the menu Savegame is below the minimum supported version (1032 vs 1082) and null reference exceptions in FluidPortSystem. Savegame files at 5% completion with 100 Structures load without issues. The problem may be related to Mods, though all old Mods and Savegame files were removed from the drive. The issue has been verified as fixed after a ...

thick panther Mar 24, 2026, 12:11 AM

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"This Tween has been killed" is certainly a concerning error message

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This appears to be very similar to SPZ2-3053. This is a save where I just finished unlocking the final Normal milestone before I saved it. It's this one:

onyx badge Mar 25, 2026, 8:15 AM

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📎 backup-v130-2026-3-21--15-54-11--7175452.spz2

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Bot...analyze!

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@thick panther can you drag your save in unzipped right into here to see if the bot can analyze the save? It appears to be ignoring me.

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Also do you have previous backup save files in your save folder that still work?

pine lanternBOT Mar 25, 2026, 8:29 AM

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🎫 Many thanks for reporting this issue! We have created an internal ticket for further investigation and will keep you updated. The internal ticket ID is SPZ2-6016 for reference. If you want to provide further information, just comment on this thread.

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[SPZ2-6016] [1.0.0-beta2] repeatable crash on loading saved game

grizzled coral Mar 25, 2026, 9:00 AM

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📎 backup-v130-2026-3-21--15-54-11--7175452.spz2

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Hm bot seems to not like this savegame 😄

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There you go 🙂

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📎 backup-v130-2026-3-21--15-54-11--7175452.spz2

pine lanternBOT Mar 25, 2026, 9:09 AM

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grizzled coral

💾 Normal 1.0 beta

Started in

1.0.0-beta2

Last played in

1.0.0-beta2

Scenario

Classic - Regular

Seed

89803

Research

100%

Buildings

1,066,721

Completed

Yes

thick panther Mar 25, 2026, 2:07 PM

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onyx badge Also do you have previous backup save files in your save folder that still work?

I will give that a try today.

solar sage Mar 25, 2026, 2:56 PM

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onyx badge <@111549163870699520> can you drag your save in unzipped right into here to see...

Technically it still wouldn't be unzipped... 🤣

onyx badge Mar 25, 2026, 2:57 PM

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thick panther I will give that a try today.

No need. @grizzled coral Fixed the bot 🙂

onyx badge Mar 25, 2026, 2:58 PM

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solar sage Technically it still wouldn't be unzipped... 🤣

You know what I mean 😛

solar sage Mar 25, 2026, 2:58 PM

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onyx badge You know what I mean 😛

Yes. But that's the reason why zipping a save doesn't do much.

onyx badge Mar 25, 2026, 2:59 PM

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solar sage Yes. But that's the reason why zipping a save doesn't do much.

Yeah, I did notice that the compression wasn't that much.

solar sage Mar 25, 2026, 3:00 PM

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The game probably uses a quick compression level. So zipping again with stronger settings can get a tiny bit more compression but the bulk of the reduction has already been done.

thick panther Mar 25, 2026, 4:08 PM

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Honestly, I zipped it up initially out of habit and then, when it didn't compress much, left it in the zip because I know Discord doesn't complain about zips, and I figured it might complain about a .spz2 save file.

onyx badge Mar 26, 2026, 12:16 AM

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thick panther Honestly, I zipped it up initially out of habit and then, when it didn't compres...

Were you able to go to a previous backup?
One space belt configuration was found that appeared to cause the issue.

thick panther Mar 26, 2026, 12:17 AM

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I did not try. I'll try now.

thick panther Mar 26, 2026, 12:22 AM

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onyx badge Were you able to go to a previous backup? One space belt configuration was found...

Stupid question time. How do I load an earlier save?

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I've got "play" and "export" and "delete", and "settings",

onyx badge Mar 26, 2026, 12:25 AM

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thick panther I've got "play" and "export" and "delete", and "settings",

Import will open file explorer.
Then choose the folder they are in.
Then you will see the files.

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Unless...it opens the wrong folder, then change the path to: %USERPROFILE%\AppData\LocalLow\tobspr Games\shapez 2\savegames

thick panther Mar 26, 2026, 12:29 AM

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Oh. OK. They're named with UUIDs. Is there a way to tell which is which from the in-game screen? Or see the save title in the folders? Or do I just have to go by date?

onyx badge Mar 26, 2026, 12:30 AM

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thick panther Oh. OK. They're named with UUIDs. Is there a way to tell which is which from t...

Theres v and then a number that shows the order they were saved in.

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v1 is the first save for example

thick panther Mar 26, 2026, 12:31 AM

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I meant how to tell which save folder is which. But I see the extremely tiny UUID on the loading screen now.

onyx badge Mar 26, 2026, 12:31 AM

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Date time unfortunately.

thick panther Mar 26, 2026, 12:31 AM

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Gotta copy it out and zoom in, though:

onyx badge Mar 26, 2026, 12:32 AM

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v1135? if that is same as what I think it is, that's an insane amount of autosaves 😉

thick panther Mar 26, 2026, 12:32 AM

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Folder's got up to V130.

onyx badge Mar 26, 2026, 12:33 AM

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thick panther Folder's got up to V130.

Looks like you are in the right place

thick panther Mar 26, 2026, 12:33 AM

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Yeah, the UUID on the loading screen put me in the right folder.

onyx badge Mar 26, 2026, 12:34 AM

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Also don't delete the bad saves and then try to make it work that way, or you will lose a bunch of autosaves.

thick panther Mar 26, 2026, 12:34 AM

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V130 still crashes on load, trying V129 now.

onyx badge Mar 26, 2026, 12:34 AM

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onyx badge Also don't delete the bad saves and then try to make it work that way, or you wi...

Import them to a new one.

thick panther Mar 26, 2026, 12:35 AM

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Yeah, That's what I did. Imported 129, trying to load it now.

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If that fails, I'll import 128, 127, etc.

onyx badge Mar 26, 2026, 12:35 AM

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maybe try 125, 120, 115?

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The saves do take a while to load.

thick panther Mar 26, 2026, 12:37 AM

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129 also crashes. To be clear: The issue is that I built something at some point during my last play session that worked in-game but then crashes when I try to load it?

onyx badge Mar 26, 2026, 12:37 AM

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Yes

thick panther Mar 26, 2026, 12:38 AM

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And I guess just "fixing the thing that makes it crash" isn't easy. Is there a way to tell what I did that broke it so it won't happen again?

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I'm already loading saves from before I finished the last milestones and it's still crashing.

onyx badge Mar 26, 2026, 12:40 AM

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This will crash the game and trigger similar errors to what your save did:

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And confirmed. beta4 crashes with that in the save.

thick panther Mar 26, 2026, 12:41 AM

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onyx badge This will crash the game and trigger similar errors to what your save did:

Huh. I even know where I used that, a fancy-looking 6->5 pipe load balancer.

onyx badge Mar 26, 2026, 12:41 AM

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Really? 😉

thick panther Mar 26, 2026, 12:42 AM

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Er, a 1->5 even splitter.

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onyx badge Mar 26, 2026, 12:45 AM

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I don't know why I laughed when you realised exactly where you had something like that.
Just the shock of how complicated factories can be and you knowing exactly where it would be 🙂

thick panther Mar 26, 2026, 12:45 AM

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It's a pretty fancy-looking piece!

onyx badge Mar 26, 2026, 12:46 AM

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Evil things can be fancy looking.
We should name it... The loop of death!!?

thick panther Mar 26, 2026, 12:46 AM

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There was a discussion on the discord about how to split belts/pipes evenly into numbers that weren't multiples of 2 or 3

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Someone suggested this as a way to make a 5-way even splitter.

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Because that's what it does: splits the first pipe into 2 then 6, and feeds one of the 6 back into the 2

onyx badge Mar 26, 2026, 12:47 AM

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I need to test that configuration right now!

onyx badge Mar 26, 2026, 12:47 AM

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thick panther Someone suggested this as a way to make a 5-way even splitter.

If it works, its genius.

thick panther Mar 26, 2026, 12:48 AM

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It does work! But also it crashes the game and breaks your save.

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It's a lot easier to see when you spread it out a bit:

onyx badge Mar 26, 2026, 12:49 AM

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ok.....

thick panther Mar 26, 2026, 12:49 AM

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It didn't crash my game when I built it, to be clear.

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Only when I tried to load the save.

onyx badge Mar 26, 2026, 12:50 AM

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No crash. Worked fine on reloading.

thick panther Mar 26, 2026, 12:50 AM

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Hmm.

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Then maybe I don't know where I used that pattern.

onyx badge Mar 26, 2026, 12:50 AM

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Might be a variation like?:

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Nope. Still worked fine.

thick panther Mar 26, 2026, 12:51 AM

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The last thing I built before saving and quitting was this incredible monument to poor planning:

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I finished that, got the last milestone, saved, and quit. I don't THINK I added a loop like that.

onyx badge Mar 26, 2026, 12:51 AM

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Must be a save where its still working? 🙁

thick panther Mar 26, 2026, 12:52 AM

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Nope, all the saves are before I finished it.

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All the WORKING saves.

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Still, I've got everything I need to make this. Most of the black/white weird shape outputs just aren't hooked up any more.

onyx badge Mar 26, 2026, 12:53 AM

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Oh. So you were able to go back far enough where the saves were still working which was before making that you mean?

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This crashed:

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But the routing, I don't see shapes being about to transport using that.

thick panther Mar 26, 2026, 12:55 AM

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Yeah, that wasn't wht I built, unless I saved with a version of it half-finished.

onyx badge Mar 26, 2026, 12:55 AM

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Half finished maybe makes sense.

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But no matter what, that should never crash the game on reloading a save.

thick panther Mar 26, 2026, 12:56 AM

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I had the first screenshot I posted built and saved as a blueprint.

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And I don't think I left any incomplete versions around. But I must have, somewhere.

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Anyway. Thanks for the help!

onyx badge Mar 26, 2026, 12:57 AM

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You are welcome. I wanted to see if I could get you back up and running.

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That crashes it too:

thick panther Mar 26, 2026, 1:04 AM

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I'm assuming that pre-1.0 this is going to get fixed and my crashing save will stop crashing?

onyx badge Mar 26, 2026, 1:07 AM

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I have no information on that. I hope so.

thick panther Mar 26, 2026, 2:59 AM

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DragonHeart noted that yes, all of the crashes are a loop with no inputs. Possibly useful information!

hollow tulip Mar 26, 2026, 3:05 AM

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Have the equivalent been tried with regular belts?

#[SPZ2-6016] [1.0.0-beta2] repeatable crash on loading saved game