Modifications of profiles, or at least what I experience it with, the JVM arguments, do not save when you apply them, thus upon game crash within the session of modification, the changes will revert.
How to reproduce:
Go to the Minecraft Launcher
Find a profile in the list of profiles
Expand the options and choose Edit
Click More Options to expand
Change an argument like -Xmx or -Xms to a different value
"Save" the changes
Launch the game with the modified profile
Cause the game to crash (It may be certain crashed but I have experienced them on various)
Go to the Minecraft Launcher again and go to edit the profile
Find the argument you modified and notice that it has reverted to previous value
Comments 2
Hi there!
Please, attach launcher_log file.
Does this issue occur on the newest version of Launcher?
Does this issue occur on MS store version of the Launcher?
Do you use VPN or any of the incompatible software on machine you try to log-in? https://minecrafthopper.net/help/known-incompatible-software/
This ticket will automatically reopen when you reply.
Relates to MCL-14797 MCL-16696
They happen whenever game is launched rather than only on a crash.