LocalState#get(String) can throw FileNotFoundException which results in not removing worker heartbeats and supervisor is kind of stuck and goes down after some time.

LocalState#get(String) can throw FileNotFoundException which may result in supervisor.clj#sync-processes which stop assigning new workers/assignments etc and supervisor goes down later.

VersionedStore#mostRecentVersionPath() can return a file only with suffix of .version but the original file for a specific version may not have been there because .version suffix was not deleted but respective data file may have been deleted in earlier cleanups.