I had installed the DJI Lens Filter Mounting Kit a few weeks ago with not problem. I then ordered the "Signs of Life" black matte sticker to cut down on the glare. When I tried to remove the Lens Filter Mount using the hex wrench, both of the hex bolts ended up stripped and now I can't remove them. Obviously I'll need to get replacement bolts, but any suggestions on how to best remove the stripped ones? Thanks in advance.