I am on my second gas cap on a bike I purchased on 3/23. The trim ring keeps coming off. Then I noticed that I can pull off the gas cap and I can see the springs and all of the insides. Gotta have this checked with my 1000 mi. service. Maybe the fuel is removing the glue that holds the trim ring in place? Weird. Never heard of a problem with a gas cap before.
Welcome to the site!
I think I've heard of this a couple times, although I haven't had the same problem myself.
I did have to have one flush gas cap replaced after the thing got stuck. Got it pried loose, ordered the new one under warranty, rode to Florida for about 3 weeks with it in the "up" position, came home & got my new cap.
I think I heard about the trim ring issue when I was getting the paperwork done for the new cap.
Anyway, I hope this is the worst problem you have with your bike - my guess is that the surface isn't sufficiently cleaned with those alcohol swatches to get good adhesion from the glue.
Welcome!