This auto-assign thing is just a bit all over the place with some 'bugging' after friendlies, some at season start, some seemingly randomly and me, the lucky one, who sometimes visits the app on phone, beta app via an emulator, fb app but mostly play on t11 web. I've not had an auto-assign on the web bug issue yet and I've even avoided auto-assign by switching from app to T11web well before the match is due to end........but then again I don't save a huge number of sp so it's possible its hit when there's nothing to hit.

I don't do anything special like logging out to exit but I do use the fb login on all platforms.

PS. the last time I specifically tested focus assignment it was nowhere near 100% effective.