If the file is changed, it should rescan. Are you saying that you scanned the file, then changed a file, then waited (or forced) a rescan and it didn’t update the db entry?
If that’s the scenario, that’s a bug.
Yes, that’s my scenario. At least I think it was when I wrote that comment. 😀 File modified (rating tag updated)… Firefly rescan… no rating change seen by Firefly clients.