Hello,
When I try to print using the AMS Lite, I have no issues with slots 1, 2, and 4 — I can print normally without any problems. However, when I try to print using slot 3, I experience filament jams.
I tested the same filament in the other slots, and there was no jamming at all; the prints came out perfectly. Then I loaded the filament into slot 3 again, switched to maintenance mode, set the temperature to 230°C, and manually extruded filament downward. There was no issue with the flow — the filament extruded smoothly.
However, when I start an actual 3D print using slot 3, the filament gets jammed, and the printer continues printing without extruding any filament.
Could you help me understand what might be causing this issue?
Maybe try the same filament in slots 1,2,4. To find out if that’s for sure a slot or the filament issue 
I personally had my own jamming issues resolved by inserting the nylon tubing into the toolhead correctly, not doing so may cause it to jam
And I think with an actual print; I think a difference is the angle at which the tubing stands, some positions of the tubing could trigger the jam while others don’t, due to the angle it uses at that jamming point.
(Another common jamming issue I personally experienced is brittle filament snapping in the tubing.)