Why are my buttons glitchy

After I press the menu button and try to use the pad sometimes the camera randomly selects/alters settings. The buttons seem to glitch even though no pressure is on them.

Solution:

Actually I have the answer. Was trying to find a solution everywhere and no one had any so I thought I would share my solution. Cannot say why this happens but I simply opened the back cover by removing a few screws and put a piece of scotch tape over the membrane buttons. No more glitch. There must be some sort of short or static from the buttons causing it.