Not possible to answer incoming call

Recently I have not been anble to answer incoming calls.

When I get a call, I get the notification that there is a call incoming, but nothing happens when I press the "Accept" button in the notification.

If I have the Dialer application open when the call happens, it switches to the "actice call" screen immediately (the one with the mute and hang up buttons), but the call has not been answered and the phone is still ringing.

These calls are listed in the History, but without a number. There is also no number in the notification when the call happens, so maybe the issue is that theres a problem with the number lookup/parsing?

Outgoing calls work fine.

Tested on todays dev image on a Pinephone Pro.