App freezes on attempt to edit instance after leaving a game

[AngleWyrm10]

Operating System

Windows 10 MultiMC v0.6.11.1430 Forge v36.1.31 Minecraft v1.16.5

Description of bug

Application hangs (not responding) when attempting to edit instance after returning from a playthrough.

Steps to reproduce

Start a game, play for a sec Save and quit game Quit minecraft Attempt to edit instance

Suspected cause

Might be related to Issue #2610

This issue is unique

• [X] I have searched the issue tracker and did not find an issue describing my bug.

[spannerman79]

This is more of a duplicate of #3811

See https://github.com/MultiMC/MultiMC5/issues/3811#issuecomment-856513532

[Xenapte]

I think that probably was from large log files. I once played on a server with a bug that caused error spamming in client log (the gameplay was not affected though) and generated >10MB log files each time. And MultiMC most time froze when I tried to edit that instance after playing in that server in the last launch (it would always freeze if I tried to edit that instance while playing, since it auto navigated to logs page).

[Arrowpuppet]

Looks like it's definitely the large log files causing the app to hang. I lowered the line limit on the logs to ~20k and the issue stopped. (unfortunately this means the log that's shown in the launcher will be mostly useless if it's being filled with error spamming, but it's not too much of a hassle to grab the log files manually.)

Also may be worth noting I am running Arch linux, not windows. Looks like this issue may occur the same across platforms.

[ljcool2006]

Was just able to reproduce this.