Can you check to see if fprintd is:
(a) still running and hung (RedHat issue 1534873); or (b) crashed (most likely bug 1960387)
If you can't find it still running then the steps to investigate crashes are https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment
Can you check to see if fprintd is:
(a) still running and hung (RedHat issue 1534873); or
(b) crashed (most likely bug 1960387)
If you can't find it still running then the steps to investigate crashes are https:/ /wiki.ubuntu. com/Bugs/ Responses# Missing_ a_crash_ report_ or_having_ a_.crash_ attachment