Are you sure you updated correctly and restarted fprintd? The new build I did cannot open the old fingerprints. So it seems more likely that something went wrong during the upgrade and you were still using the F30 or F31 version of libfprint and fprintd.
Are you sure you updated correctly and restarted fprintd? The new build I did cannot open the old fingerprints. So it seems more likely that something went wrong during the upgrade and you were still using the F30 or F31 version of libfprint and fprintd.