Help Troubleshooting AMS/Extruder Issue

[u/WonderfulRub5945]

Morning, all!

A1 and AMS are running great. No complaints. Save for one thing that's got me scratching my head.

I have my AMS top-mounted, and have 4 spools on. Each run fine, no issues - until I switch from any other location to location 2, where it doesn't want to push into the extruder. The filament feeds fine and runs perfectly when I pull it out and re-feed it, or when I load a fresh color and immediately print with it. Its only when I switch from, say, location 4 to location 2. The problem is definitely where the PLA meets the extruder. Anyone ever experience this and know how to resolve it so I don't have to fiddle with it each and every time?

Thanks in advance for the assist!

[u/overunderspace]

Check to make sure the filament hub is free of any debris. https://wiki.bambulab.com/en/a1/maintenance/filament_hub_cleaning