You install an update. Oops, they added a sandbox that doesn't work inside a docker container, it's stopped working.
You install an update. Oops, you can't log in inside a docker container any more, it's stopped working.
You install an update. Oops, they started catching the copy+paste shortcut and replaced it with one that doesn't work.
You revert a broken update. Oops, the update changed the format of your login details, the old version can't read them, gotta log in again.
You install an update. Oops, can't scroll with the mouse wheel any more.
Not showstopping bugs (if you're used to persuading broken oauth logins to work) but it certainly makes updating an "ugh, what have they broken this time?" experience.