I was getting my E-M10 with a 12-40/2.8 mounted on it (plus a Neewer metal grip) out of my camera bag, and it broke off. I did a quick search and didn't see that anyone had run into this issue. I don't have the camera near me right now, but it looked like there's a metal screw that attaches from the inside of the backplate to hold the thumb grip in place? It looked like there may have been some epoxy or adhesive, but nothing gummy or flexible. All the residue felt hard to the touch. I've contacted Olympus to figure out how to get this repaired, but I was curious to see if anyone else had encountered thumb grip failures on their E-M10.