Same here, Swedish VISA debet card.
Verified by visa first is seen, when touching the field to input password the entire background goes gray and nothing happens. When touch in the window to get keyboard to go away the screen flicks but goes back to gray.
The top-up fails a while later.
This is on Android 7.0, lenovo P2 and Revolut app version 4.5.3
After having seen the shout out about top-ups on android i quickly upgraded and tried again, the issue is still the same on version 4.5.6
Verified by visa page pops up, then the window goes all gray and nothing can be done - the top up fails and my banks fraud detection goes of after a couple of tries.
This is seriously annoying… Revolut NEEDS a website as a backup because from time to time the apps will have bugs like this always.
I understand Revolut is growing crazy fast so doubt it will be taken care of any time soon, the issue needs to be recognized though.