Set the "new" circulating strong box and then delete data of revolut and the newest Version will work then. Got it working on 2 devices since yesterday.
Yep we are doomed, there are only 2 public available keyboxed which give device integrity but both do not work for wallet and revolut for whatever reason.
There is no problem in using the newest Paypal App with root, you just need to hide the Root itself from Paypal. So first umount modules for KSU via the manager (should be enabled by default globally) and use HMA Oos to hide the root manager from Paypal via Blacklist mode.
The xiaomi.eu ROMs are based on the chinese official ROMs, officially released by Xiaomi and the last official chinese Rom for the Redmi K80 Pro aka MIRO, was released in the 7th May.