What it says on the tin, really.
I have a really bulky project, with lots of IK usage, constraints, and various scenes and assets; in short, a project that takes a minute or two to load. If I swap platforms via the SDK panel, like from Windows to Android, the project crashes. Every time. If I open the project after said crash, it will be in the platform version that I told it to swap to.
Why this is a major issue is that I also have had issues opening Substance Painter, other Unity projects, non-Unity games, even opening VRChat as a whole, after these crashes.
I'd record the crashes if I knew OBS wouldn't crash along with said bulky unity project.
This issue only happens on really heavy Unity projects, and does not happen on lighter ones.
I will update this as I get more info. Maybe I'll record a crash on my phone.