You have to rename the gms file via TWRP. Colleague of mine had the same issue. Google for "Google pay file rename fix TWRP" This method fixes it.
Rename "data/data/com.google.android.gms" to "
data/data/com.google.android.gms.bak" or simply delete it. Reboot (preferable) or delete app data of Gpay and setup your payment method again (uncool since cumbersome)
Done!
Here's the article.
Fragen und Antworten zum zweiten Android-Tablet aus dem Hause Toshiba.
www.android-hilfe.de
It's in German but you'll get the idea.
Fixed it on mi 8 on this release.
Gesendet von meinem MI 8 mit Tapatalk