Same issue on my end. It happened out of nowhere: “fingerprint reader unavailable”, settings are gone for the fingerprints, and apps using fingerprints are not using it anymore.
I tried to dial *#*#2886#*#* in the phone app, then select “FINGERPRINT RAWDATA”, the application crashes in loop.
Is it because of the .98 update (can it be patched)? Or did my fairphone 5 just lost its fingerprint reader???