A crash when analyzing multiple files has been reported, see https://community.metabrainz.org/t/picard-closes-on-scan/626566/  for details.

According to the logs the crash happens directly after results have been received from AcoustID and first files get moved to the new release. There is no actual Python exception, that indicates some kind of segmentation fault.

As the issue seemingly goes away when running only a single fingerprinting operation at a time this indicates issues with parallelism. Likely parts of the code matching files to releases is not thread safe.