App freezes when cancelling scanning QR code

[Row-Bear]

When signing a transaction with a keystone wallet, the flow in xBull is:
-Click sign transaction
-a QR Code appears (to scan on the hardware wallet)
-underneath the QR code is a button to scan the signed tx.

If you go into the mode to scan the signed tx, but want to cancel/go back, there is a 'cancel' button.
Clicking that disables the camera, but does not close the 'scan QR code' popup, getting the wallet stuck.

Workaround: force close and restart wallet

Android, version 1.33.0