Intellij failing to save code

I have upgraded to intellij 2020.2 community edition. However I've had multiple times now that code is lost after closing intellij. The deceptive thing is that intellij keeps working normally, gives no problems during working. On close it looses all changes since an arbitrary time. 

Sometimes on commit of code, the git commit screen cannot show up. At that point I know I need to save my code changes manually to an external doc because I'll lose (some of those) changes on restart of the IDE. 

I've no idea what is the cause of this. I already tried remove the safeactions plugin. However this does not work. 

Also the Lombok processing plugin seems to be very buggy now (works partially and sometimes it doesn't, but readding annotation then makes it work again).

All in all I'm very unhappy with this strange behaviour. Any help or suggestions are very welcome.

Regards,

Rick