Unable to revoke a device/remove a device from the list of linked devices

Unable to revoke a device.

client-android shows a message with title Can't revoke device with message Unknown device.

If the device is unknown, how can the device be removed from the list?

client-qt does not revoke the device and provides no feedback.

Can client-qt please show a message if it was unable to revoke a device like Android does?

Please advise if you need a screenshot from the Android device.

Thank you

client-andriod 20210812-01

Linux Mint 20.2 Cinnamon
client-qt 202108172029