2004 3023 wire covers/wall paper trim

I have just purchased a new 2004 TM 3023 and I have noticed that the wiring covers that cover the wiring on the ceiling of the TM keep coming off. Everytime I open the door I find one of them on the floor. Is this normal or is there a fix for it?? ???

Also I have noticed that the trim wall paper that goes around the inside keeps coming loose, it appears that the adhesive is not doing its job. We live in South Alabama and the humidity is very high every day and I am wondering if that has anything to do with it?? ???