visual studio
recently i had the misfortune of going back to visual studio for wpf development at my job, which led me to rediscover how janky it is:
this happened at some point when i was editing string resources (which are another great invention by microsoft, editing these not in vs/rider ui requires a bunch of willpower) and required a relaunch to fix; classic race condition.
besides that there were several "unexpected problems with one or more projects" triggered by trying to do a lot of things at the same time (actually don't know if that's true and i don't care much)