Can't make payment. Fingerprint ID fails

Can’t make payments. Can go all the way through to ‘Confirm it’s you to send… Touch Sensor’ but then it fails to register my fingerprint. It buzzes as though it has done but the app is unresponsive. Can cancel the payment fine. I can log in via fingerprint fine too so its not likely a hardware issue. Switched to PIN authentication and it works fine.

Attempt to make a payment
Android v10
Pixel 3a
App Version 3.42.0


OK fixed it but still a bug. Going from PIN auth back to fingerprint sorted it somehow.