Remaining prevents seahub to start

hi there!

today i had some serious issues to start seahub.

worst of all there was literally no hint in error message, only

Error:Seahub failed to start.
Please try to run “./ start” again

Nothing in my *.logs, systemd/journal or anything else i could think of. Maybe i missed something …
BUT after 1,5h and almost losing my mind i just stumble upon some PID files. was still there, and of course after removing everything was fine again.

PLS can seafile team implement some check to delete remaining PID files? (prbl happend after sys crash)
or at least a message that there are remaining pid files.