Hey so I bought the Air Assist kit from Creality directly to help out my Falcon 10W. I installed everything and readjusted the laser height using the metal stepper tool to cut the 3mm MDF that I use. It won’t cut anything. It barely engraves! However when i replaced the lens protector on it using a spare lens protector I ordered along with it it cuts fine. Is the lens protector from the air assist kit affecting the focusing of the laser? Has anyone else had this issue?