I am also having the issue.
For now renamed the ‘broken’ .exe and restored the prior version from my incremental backup. The errors are gone, using the .exe dated 4/19/2021
The latest (broken) ‘fingerprinter’ .exe dated 4/29/2021 is 102KB, on all my backups going as far back to to November 2020 the size of the executable is 616KB.
Since Plex Server throws the ‘fingerprinter’ error an keeps running some may not be noticing it is happening.
Hope this helps until Plex resolves…
