Printer keeps returning filament out message at end of print/colour change

I’m having an odd “non-issue” that I’ve had an even harder time googling to see if anyone else is experiencing.

Frequently (not 100%) of the time, at the end of a print or at a colour change, the printer will display an AMS slot out message and to wait while the filament is purged. This happens even though there is a full spool of filament and once the purge has finished, it stops claiming the AMS slot is out. This doesn’t seem to cause any other issues, but it’s very odd.