Game Crash During Launch

[novel fossil]

LowLevelFatalError [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\Serialization\Archive.cpp] [Line: 795]
BulkData compressed header read error. This package may be corrupt!

0x00007ff6fbf24a9d Funguys-Win64-Shipping.exe!FArchive::SerializeCompressedNew() []
0x00007ff6fbf30f87 Funguys-Win64-Shipping.exe!FArchiveLoadCompressedProxy::Serialize() []
0x00007ff6ff1eb011 Funguys-Win64-Shipping.exe!TArrayPrivateFriend::Serialize<unsigned char,TSizedDefaultAllocator<32> >() [C:\Program Files\Epic Games\UE_5.6\Engine\Source\Runtime\Core\Public\Containers\Array.h:4061]
0x00007ff6ff1eb79f Funguys-Win64-Shipping.exe!UC_SaveSystem::LoadGame() [F:\TC\a4ad32047ed35d8f\ue5\ProjectSubway\Source\MSaveSystem\Public\C_SaveSystem.cpp:97]
0x00007ff6ff9909d7 Funguys-Win64-Shipping.exe!UC_SaveSlotManager::LoadSaveSlotInfos() [F:\TC\a4ad32047ed35d8f\ue5\ProjectSubway\Source\Flameguard_Core\SaveSlotManager\C_SaveSlotManager.cpp:80]
0x00007ff6ff98fa86 Funguys-Win64-Shipping.exe!AC_GameMode::InitGame() [F:\TC\a4ad32047ed35d8f\ue5\ProjectSubway\Source\Flameguard_Core\C_GameMode.cpp:27]
0x00007ff6fefcc25a Funguys-Win64-Shipping.exe!UWorld::InitializeActorsForPlay() []
0x00007ff6ff06d8c4 Funguys-Win64-Shipping.exe!UEngine::LoadMap() []
0x00007ff6ff05ad7b Funguys-Win64-Shipping.exe!UEngine::Browse() []
0x00007ff6fe8a501a Funguys-Win64-Shipping.exe!UGameInstance::StartGameInstance() []
0x00007ff6ff0d45ff Funguys-Win64-Shipping.exe!FEngineLoop::Init() []
0x00007ff6ff0d9ba8 Funguys-Win64-Shipping.exe!GuardedMain() []
0x00007ff6ff0d9cba Funguys-Win64-Shipping.exe!GuardedMainWrapper() []
0x00007ff6ff0da9ad Funguys-Win64-Shipping.exe!LaunchWindowsStartup() []
0x00007ff6ff0e1c14 Funguys-Win64-Shipping.exe!WinMain() []
0x00007ff702afc7f2 Funguys-Win64-Shipping.exe!__scrt_common_main_seh() [D:\a_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
0x00007ffd0ba27374 KERNEL32.DLL!UnknownFunction []

Have updated drivers, uninstalling and re-installing as well as verifying game file in steam. Did not have a crash problem before.

PC Info:
Operating System Microsoft Windows 10 Pro (64-bit)
Memory 16 GBytes DDR4
Processor 12th Gen Intel(R) Core(TM) i5-12400F
Motherboard Micro-Star International Co., Ltd. - PRO B760-P WIFI DDR4 (MS-7D98)
Graphics Card 1 NVIDIA GeForce GTX 1660 SUPER

[dark spire]

Hi charlie! I think I saw your comments on the Steam Discussion too!🙌
(fingers crossed im not mistaking you for someone else )

Does the crash happens as you're opening the game (before reaching the menu screen) or does it happen when you selected to load your save file? 😮

[dark spire]

oh one more thing, do you mind sharing your save file here too so we can check it? You can find your save file by paste-ing this filepath on your windows explorer: %localappdata%\ProjectCoral\Saved\SaveGames

[novel fossil]

Hi! Yes they're both me! The crash happens during launch, I can see the stairway animation barely, and then the error message pops up and the screen remains black. As soon as I click on the error message or around the message it force closes.

I searched and this is everything that popped up. Not sure which is the one you're looking for so here's everything.

Also this is for the Funguys Swarm game. Not Coral Island. Although I have been playing Coral Island in the meantime with no issue. Let me know!

Thanks

[dark spire]

Oh I was right thank goodness! Hehe 😄
And my bad, the Funguys Swarm save file should be in the %localappdata%\funguys\Saved\SaveGames ! I forgot to change the app name folder><

Can you please share your Funguys Swarm save file from that folder? So sorry for the confusion :"

[novel fossil]

Here's the files!

[dark spire]

Thank you soooo much!!!!<3 passing them to the team now

[unreal geyser]

Hello I also have the same problem, can you please help me as well?

It happens as the Stairway Games logo appear, the game just crash with the same error

LowLevelFatalError [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\Serialization\Archive.cpp] [Line: 795]
BulkData compressed header read error. This package may be corrupt!

0x00007ff6cf784a9d Funguys-Win64-Shipping.exe!FArchive::SerializeCompressedNew() []
0x00007ff6cf790f87 Funguys-Win64-Shipping.exe!FArchiveLoadCompressedProxy::Serialize() []
0x00007ff6d2a4bab1 Funguys-Win64-Shipping.exe!TArrayPrivateFriend::Serialize<unsigned char,TSizedDefaultAllocator<32> >() [C:\Program Files\Epic Games\UE_5.6\Engine\Source\Runtime\Core\Public\Containers\Array.h:4061]
0x00007ff6d2a4c23f Funguys-Win64-Shipping.exe!UC_SaveSystem::LoadGame() [F:\TC\cf002b28bd22eb8a\ue5\ProjectSubway\Source\MSaveSystem\Public\C_SaveSystem.cpp:97]
0x00007ff6d31ed2b7 Funguys-Win64-Shipping.exe!UC_SaveSlotManager::LoadSaveSlotInfos() [F:\TC\cf002b28bd22eb8a\ue5\ProjectSubway\Source\Flameguard_Core\SaveSlotManager\C_SaveSlotManager.cpp:80]
0x00007ff6d31ec366 Funguys-Win64-Shipping.exe!AC_GameMode::InitGame() [F:\TC\cf002b28bd22eb8a\ue5\ProjectSubway\Source\Flameguard_Core\C_GameMode.cpp:27]
0x00007ff6d282cc9a Funguys-Win64-Shipping.exe!UWorld::InitializeActorsForPlay() []
0x00007ff6d28ce304 Funguys-Win64-Shipping.exe!UEngine::LoadMap() []
0x00007ff6d28bb7bb Funguys-Win64-Shipping.exe!UEngine::Browse() []
0x00007ff6d210596a Funguys-Win64-Shipping.exe!UGameInstance::StartGameInstance() []
0x00007ff6d293503f Funguys-Win64-Shipping.exe!FEngineLoop::Init() []
0x00007ff6d293a5e8 Funguys-Win64-Shipping.exe!GuardedMain() []
0x00007ff6d293a6fa Funguys-Win64-Shipping.exe!GuardedMainWrapper() []
0x00007ff6d293b3ed Funguys-Win64-Shipping.exe!LaunchWindowsStartup() []
0x00007ff6d2942654 Funguys-Win64-Shipping.exe!WinMain() []
0x00007ff6d6359692 Funguys-Win64-Shipping.exe!__scrt_common_main_seh() [D:\a_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
0x00007fff0b19e8d7 KERNEL32.DLL!UnknownFunction []

I have updated my drivers, deleted the save file in localappdata, uninstalled the game, reinstall it

Nothing changes

[dark spire]

Hi hi!
Do you mind sending us your save file too please so we can check it? 😮

[unreal geyser]

Okay sure

Are those the right files?

[dark spire]

Let me relay them to the team first yea Grove!

[novel fossil]

Hi! Just checking in to see if there was an update I tried to launch Funguys just now and am still getting the same message.

[dark spire]

Hi Charlie! Yeah we're still working on the fix for this one please hang in there a little bit longer yeah, once it's fixed I will definitely inform you!

[novel fossil]

Just wanted to check in again, just attempted launching and got the same error message:

LowLevelFatalError [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\Serialization\Archive.cpp] [Line: 795]
BulkData compressed header read error. This package may be corrupt!

I was able to see the stairway graphic and also the unreal engine logo before the message popped up.

Is there anything else I can do to help? Or troubleshoot? Thanks

[dark spire]

Hi Charlie! we're still investigating this one, and we've added your latest error message to the reports too, hang in there, yeah? :'>

[novel fossil]

hi barely hanging in here

[magic blade]

Hey @novel fossil !
We know this has been really frustrating, and we’re sorry it’s taking longer than expected.🙏
The issue is still being worked on, and we’ll share updates as soon as we have more.

Thanks for sticking with us, it truly means a lot

[magic blade]

Hi again @novel fossil @unreal geyser ! We just heard back from the team. Unfortunately, based on our investigation, it looks like the save file is corrupted, which is what’s causing the crash. We know that’s really frustrating, and we’re really sorry about this.🙏

To help you get back into the game, please try the steps below:

• Open this folder : by copy-paste this file path to the File Explorer %LocalAppData%\Funguys\Saved\SaveGames
• Delete the save file (for example: save0.sav)
• Launch the game again and allow Steam to sync the save automatically

We really appreciate you taking the time to report this and work through it with us. If anything feels unclear or the issue persists, please don’t hesitate to let us know — we’re here to help

[novel fossil]

I tried deleting the save file but still had the same error message. I even tried unistalling and reinstalling. I don't mind starting all over, but it seems the game just won't open. What would the steps be to completely remove the game and then start fresh?

I deleted the entire funguys files on my computer, unistalled and re installed. Same message

LowLevelFatalError [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\Serialization\Archive.cpp] [Line: 795]
BulkData compressed header read error. This package may be corrupt!

0x00007ff782856afd Funguys-Win64-Shipping.exe!FArchive::SerializeCompressedNew() []
0x00007ff782862fe7 Funguys-Win64-Shipping.exe!FArchiveLoadCompressedProxy::Serialize() []
0x00007ff78274bd71 Funguys-Win64-Shipping.exe!operator<<<unsigned char,TSizedDefaultAllocator<32> >() []
0x00007ff785b21c2f Funguys-Win64-Shipping.exe!UC_SaveSystem::LoadGame() [F:\TC\a4ad32047ed35d8f\ue5\ProjectSubway\Source\MSaveSystem\Public\C_SaveSystem.cpp:97]
0x00007ff7862ff717 Funguys-Win64-Shipping.exe!UC_SaveSlotManager::LoadSaveSlotInfos() [F:\TC\a4ad32047ed35d8f\ue5\ProjectSubway\Source\Flameguard_Core\SaveSlotManager\C_SaveSlotManager.cpp:80]
0x00007ff7862fe0e6 Funguys-Win64-Shipping.exe!AC_GameMode::InitGame() [F:\TC\a4ad32047ed35d8f\ue5\ProjectSubway\Source\Flameguard_Core\C_GameMode.cpp:27]
0x00007ff7858feb7a Funguys-Win64-Shipping.exe!UWorld::InitializeActorsForPlay() []
0x00007ff7859a02c4 Funguys-Win64-Shipping.exe!UEngine::LoadMap() []
0x00007ff78598d72b Funguys-Win64-Shipping.exe!UEngine::Browse() []
0x00007ff7851d76fa Funguys-Win64-Shipping.exe!UGameInstance::StartGameInstance() []
0x00007ff785a06fff Funguys-Win64-Shipping.exe!FEngineLoop::Init() []
0x00007ff785a0c5a8 Funguys-Win64-Shipping.exe!GuardedMain() []
0x00007ff785a0c6ba Funguys-Win64-Shipping.exe!GuardedMainWrapper() []
0x00007ff785a0d3ad Funguys-Win64-Shipping.exe!LaunchWindowsStartup() []
0x00007ff785a14614 Funguys-Win64-Shipping.exe!WinMain() []
0x00007ff7894725f2 Funguys-Win64-Shipping.exe!__scrt_common_main_seh() [D:\a_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
0x00007ffa0c0b7374 KERNEL32.DLL!UnknownFunction []

[nova girder]

Ahh, I’m really sorry the crash is still happening even after deleting the files and reinstalling the game We’ve passed this back to the team, and they wanted to double-check one thing.
When you open the save folder now, is the save file still there? We just want to make sure everything’s fully cleared and that nothing suddenly pops up again!

[novel fossil]

Yes I've deleted the whole thing, and when I searched it again it said it was not found. So I definitely think I cleared it.

[magic blade]

Thanks for the update and for getting back to us!

To help us check this further, could you please send us a video or a screenshot of your SaveGames folder?

That would be really helpful—thanks in advance!

[novel fossil]

Sorry its in two videos, I hit the stop button on accident.

[magic blade]

Hey, thanks for the update!
Could you try turning off Steam Cloud and see if that helps?

Steps to try:

1. Delete the save files from the local save folder.
2. Disable Steam Cloud:
   → Open Steam
   → Right-click the game → Properties
   → General → turn off “Keep game saves in the Steam Cloud”
3. Relaunch the game and check if the issue persists.

Let us know how it goes!🍄