Can't login with Microsoft account
I've been updating SwiftKey on my phone (Fairphone 2, LineageOS, Android 9) and since than I can't login into my SwiftKey account via Microsoft. Which is annoying, since I really wanna have my dictionary and my themes back.
I get the message "Authentifizierungsfehler bei SwiftKey-Konto! Tippen, um erneut zu aktivieren" (authentification error with SwiftKey-account, tap to activate again) – which of course doesn’t work. I also tried going back to my previous version (220.127.116.11, I think) but the problem stays the same.
Any ideas how to fix that?