Snapchat "log In Temporarily Failed", Not Rooted

Mar 22, 2016
Can't find a solution anywhere. Factory reset my phone as it was giving me issues and now I can't log back into Snapchat, I get "log in temporarily failed" error message. The phone isn't rooted (lots of people saying unroot, delete Xposed framework etc) and I've tried clearing caches/data and granting permissions to Snapchat and all Gapps.

Running MIUI8 7.2.16 China developer ROM, Android 7, waiting for bootloader unlock so I can use an EU ROM. Anything I can do? When I switch to EU ROM should Snapchat work fine?