iPad Mini opens and closes apps on its own

seems as if the replacement glass is either not set right or the digitizer is slightly damagd

I have the same problem digitizer jumps from app to app own its own I think I may have damage it when pressing to hard on it insuring that the adhesive sticks I notice that before that it was working fine but afterwards that's when I notice the problem

The iPad mini have many booby traps in them... There could be several reasons you are having this problem, the most common is not using kapton tape around the edges. The goals is to look at the original screen and make sure all the same areas are taped off on the new screen. The second issues is using cheap screens on eBay will only cause you problems, they have the silver edges the good screens have gold or cooper. The mini is not a easy device to fix!!

Your problem is most likely that the screen you bought didn't come equipped with Kapton Tape, Tape the bottom of the digitizer on the inside leaving out only the home button. Hope that works