Never finishes ABORT-REQUESTED status

When a scan has been running for days I manually stop the scan, because I’m happy with the result as it is.

However, I’d really like to set the false positives to wash the result, but the scans seem to be stuck in ABORT-REQUESTED status.

How can I turn them into FINISHED status, so I can start wortking with false positives?

Thank you very much for your support!