It could be a few different issues. One, yes, it could be getting too hot, causing the glue to fail. Another could be it was glue starved or tool pressure from trimming.
Either way, I don't give it much thought unless it happens to the same type of tip multiple times.
It came off while shaping ,i tried other and same thing ,tip backing feels sticky like not dry but clear pad still on ferrule ,i went ahead and glued tip to clear and all is well