My light switch box appears to be normal, but when I try to put the switch cover on it just falls off. I am replacing an old switch with the same style of faceplate. I had to use the old cover as it worked okay.
Buyer beware before installing and expecting the faceplate to work. I thought the problem might be that the switch sat to far back in the box (it doesn’t look like it though), but the fact that the other faceplate snaps on makes me think that it is the way the Wyze plate holds on that is different.
Can you provide pictures of what you’re dealing with? That will help us see what you’re seeing and help come up with a plan.