Can't activate joint account card

I’ve been using Monzo for my sole account for about 6 months now, and liked it so much we’re switching over to manage all our finances by setting up a joint account with my wife.

Both our new joint account cards were received this morning. My wife’s was activated first time in her app, but every-time I try to activate mine I get the message “There was a problem. User authentication required”.

I’ve tried closing the app, and also a hard reboot of the phone (iPhone 8, latest iOS). But always the same result.

Anybody experience the same thing, and if so, how did you get it working?


Solved the problem by deleting and reinstalling the app. Now works perfectly!