Guild Wars 2

Well, it worked for me, too – I was able to setup the authenticator app again afterwards.

As explained here.

This obviously also affects the Guild Wars 2 two-factor authentication. The problem is of course that in order to unlink the device and set it up again, one needs to enter two codes – which aren’t generated anymore, because the update actually wiped that account on its own.

Is there a way to get that working again?