Downgrade just the AMS firmware

Is it possible to downgrade just the AMS firmware? I’m running 00.00.06.49 on both of my AMS units (zero release notes about this build anywhere, thanks Bambu), and am seeing an issue where Auto Refill is just choosing whatever colors it wants so long as the filament type matches. Never happened in the past, so I wanted to downgrade my AMS units to 06.44 to see if that resolves it. Problem is, Handy only appears to show me the ability to downgrade both my P1S firmware (currently 1.07) and my AMS firmware at the same time, not one or the other. I cannot risk doing this and then being forced to move to the latest build that kills OrcaSlicer.

You can downgrade via the Handy App. (Settings/Firmware version) Does it show you an option for a lower AMS version?

Yes, but like I said, it pairs it with the P1S firmware, so I cannot downgrade just the AMS firmware, which is what I’m looking to do.