Fossify on GrapheneOS - works, but does not ring.

Got Fossify installed on GrapheneOS using a Pixel8, made it the default app and took away all permissions from the GOS native dialer. The phone will alert me to calls but will not ring. Checked the ring volume, ringer is not muted.

Not sure if it's related but when in GOS settings, I can adjust volume and a ring tone sample will play to the volume level selected. If I select a different tone from the list, I do not hear a sample played until I go back to the volume slider and move it to another setting. With notifications, I get an instant sample of a new tone the moment I pick it. Alarms & notifications work normally.