Hazel preventing time machine volume from ejecting

When I have hazel running, my time machine drive refuses to eject because hazel is scanning it in some fashion. There are no open files on the drive (when a backup is not running) and no hazel rules that involve the drive.
If I stop hazel, the drive can be ejected without a problem.
Is there a workaround for this behavior?
If I stop hazel, the drive can be ejected without a problem.
Is there a workaround for this behavior?