!alternates

[hot yew]

So it ended up working just going back up to 40, but now I'm locked out from interacting with the world due to the chunk claim mod, and when I was trying to fiddle with it in game it keeps crashing, not sure what to do; Thank you for being patient with helping me
Better MC 4 - v40 crashed. The logs have been uploaded to mclo.gs:

1. 1.20.1 [FORGE]
2. What launcher did you run Minecraft with? (CurseForge)
3. Have you changed the modpack in any way except mods? (no)
4. v40
5. Have you ever gotten past the crash condition without crashing, or does the game always crash? (crashes after a bit of gameplay)
6. What steps cause the crash?

latest.log | crash-2025-04-28_19.28.17-client.txt | CurseForge: launcher_log.txt head / tail (~52MB & over 62k lines) | crash_assistant_app.log

Mod list changes beyond the modpack:

Updated mods:
entityculling (1.7.4 > (1.7.3, 1.7.4))
everycomp (1.20-2.7.27 > (1.20-2.7.23, 1.20-2.7.27))
geckolib (4.7.1.2 > (4.7.1.1, 4.7.1.2))
geophilic (3.4.1 > (3.4-b, 3.4.1))
structureessentials (1.20.1-4.7 > (1.20.1-4.6, 1.20.1-4.7))

[vapid elm]

!updatemods

[vocal galleon]

Do NOT Update Mods Manually!

Modpacks use specific versions of certain mods to prevent various issues, such as crashes or major game-breaking bugs. Mods will be updated by the modpack developer when they see fit. Please do not update the mods in a modpack manually, unless specifically told to do so.

To be clear; this is separate from updating the modpack (such as Better MC / Medieval MC / Prominence) itself. You should always stay up to date with the latest version of the modpack.

[hot yew]

I did not update anything manually I dont know waht i did wrong

[vapid elm]

!alternates

[vocal galleon]

If this command was run in response to your question/issue, it is likely because switching away from the launcher you are currently using would fix your problem.
From our experience, the most stable launcher by far is ATLauncher, also known as ATL. Keep in mind that ATL is NOT related to TLauncher in any way, and is not a cracked launcher.

To install ATL, do the following:
1. Go to https://atlauncher.com/download. If you are on MacOS, then choose the "Jar" version under the "Other" tab.
2. Install and run the setup, then open the program.
3. Login to your Microsoft account that owns the Java Edition of Minecraft from the Accounts tab on the right. This process is 100% safe, as it goes directly through Microsoft. ATL doesn't see your account credentials.
4. Go to the Packs tab on the right, then click "Curseforge" on the left.
5. Search the modpack you wish to download.
6. Click "Install". Then, follow the on-screen directions.
7. Go to the Instances tab, and click "Play" on the modpack you downloaded. If you ever see an "Update" button on the instance, click it.
This video explains the process: https://youtu.be/xMYW1wMbmkM

To transfer your Curseforge world to ATL, simply right click the modpack on Curseforge, or click the 3 dots, then click "Open Folder". Copy the Saves folder, then click "Open Folder" on ATL and paste the Saves folder there. Do the same with the XaerosMinimap folder, or the Journeymap folder, to transfer over any waypoints you've created.
Because ATL downloads the exact same files as Curseforge does, your world will be the exact same and you will be able to join the same servers. ATL also works without an internet connection (after you've installed the modpack, of course), and does not have any bloat from Overwolf. You are free to uninstall both Overwolf and Curseforge with ATL installed.

[vapid elm]

then reinstall please

on ATL

[hot yew]

I think I figured it out without that, it was just in game settings i think

new problem, the update completely destroyed my world and reset it; how can I safely go back to v36 so I can play my backup

[vapid elm]

do not use v36

the update would not "destroy your world"

and it would not "reset it"

you just didnt transfer your world file

please follow the guide that i have repeatedly instructed you to follow

[hot yew]

k

Is is normal to have a "mods not available" pop up right after I hit Install on ATL? sorry for all the stupid questions, I'm sure you have enough to do rn

[vapid elm]

the guide goes over that yes #1366585664207982623 message

just follow the on screen directions in ATL

[hot yew]

I did everything that ATL told me to do but when I load the game in it restarts the account (there's none of my premade worlds) and when I load my backup it restarts all the chunks and my builds are gone. the only backup I have is in v36 so maybe that screwed it up? That or cause its the automatic backup that was made when loading in the update it screwed it over idk

You can send me to another dev if you need too, Thanks for helping me

[vapid elm]

as I've said, you need to transfer your world file from curseforge

the guide explains this too

!alternates