My dealer is ordering a whole new plastic assembly and is going to swap the metal cover to see if it improves things. Also waiting on the SBS update. Was told mid January for that.Called the dealer yesterday and was informed that they received instructions from Mazda Canada to "install" some kind of shim under the metal cover to restore the convex-ness of the cover. I am awaiting the auto-braking software update to arrive and will get both items done at the same time.
Honestly is a failed design on Mazda's part, it's already lifting from the bottom:/Same problem here. You guys must have good dealers for them to try to resolve this problem. I'm taking the car to my dealer next week for several items and I expect them to tell me the gas cap is normal.