Has anyone ever gotten a solution on this? The 4-in-1 is chewing my filament up like crazy. I even bought more of the adapters thinking I got a bad one. I’ve tried four different adapters, changed the PTFE tubes several times, tried shorter lengths, longer lengths, done everything I can and keep getting the same result. Without it filament feeds just fine. I tried it again after installing the track switch and it was a disaster, so I plugged only two AMS2’s into my track switch until I can figure this out. Definitely a bummer.