AMS Filament Backup not working

I just got my Bambu A1 about a week ago and it is working great but one feature I am having trouble with is the AMS Backup Filament settings. I have both A1 and A2 set to the same Generic PLA settings and Color, Filament backup is Enabled on the Printer itself. Open the Settings from Bambu Studio it shows Backup Backup is enabled (screen shot below). But when the Filament runs out it does not auto switch. I will then unload the PLA from A2 and move it to A1 and it will resume the print job. Any Idea what I am doing wrong?

On the Bambu studio shout Auto-Refill be highlighted? Even when I have two spools with the same PLA settings it is not lite up.

After I moved the Filament from A2 to A1

EVERYTHING has to be the exact same. Bambu Basic PLA does NOT match Generic PLA, and the color needs to be exactly same. Its easy to miss something. Double check everything.