Does not stay in position - Vortex Micro 6X Red Dot Sight Magnifier

My father and I both bought these a while back, and have been trying to give it as many tries as possible. The glass quality is great as well as the zoom, but the problem is that every time you shoot or move the micro out of position and back into position the reticle will be completely off centered. We believe it is the mount that happens to be the problem, and not the micro itself. I would suggest waiting until Vortex uses a new mount, or you purchase a mount that is compatible.