I don't think it's in the inventor's mind. Don't you have another Zippo where you can test it? I tested it in 5 Zippo. No problems in 360 Armor Multicut, 2 regular and even in a 1935 replica and a 1941 replica. In the 1935 and 1941 it does not fit exactly, but can be removed again without problems. I would rather go to a dealer and complain. or something is wrong with the Zippo housing