We recently moved from 2.83 LTS to 2.93 LTS, and seeing the behavior above all the time.
In 2.83 a collapsed collection would still be collapsed when the scene is reopened.
In 2.93 -all- collections are now expanded on opening a scene, despite a previous collapsed state.
Which is very annoying when you have dozens of them in a complex scene.
Is somebody else seeing this behavior? Also tested with a clean install and no addons.
Hmm… Killed the user prefs for 2.93, and than it behaves at it should.
Not sure what’s going on here, will look into this a bit more.
edit: It seems to be some corruption in the startup file that caused it.
After the clean reset, I turned on some basic addons and a custom keymap ported from 2.83, and it all still works now. Oh well… that’s software for ya I guess.