What can I do against it? I would like to be able to play different versions (also with mods), only if the settings are always reset it is stupid…
(At the computer)
The problem is that in newer versions there are often more settings than in the older versions and the game would crash if the settings could not be found. The only thing you can do is install Minecraft's resource folder multiple times. You can specify an installation path when you create a new profile for a version. That would work
Already found out for yourself. It's easier. → MultiMC