This might be a stupid question, but I'm stumped so I'm hoping someone can help. When I try to push the filament into the 3dChameleon down to just above the y adapter, in most cases it won't push through the 3d Chameleon. Does it need to be in a particular mode to push the filament down to the proper unloaded starting position? Or maybe I'm making some wrong assumptions as to how it should be setup right before I start a print?