I discovered that it is causing the problem with display options, changing my engine and wanted to replace the Joystck that was giving me problems with control clearly multitouch of my game and the bug disappeared. You put 2 exact APK, the first with the Joystick of the system and the second without it. If you try it on a device with a different at 1280 * 720 resolution you will see what you explained. So many users like friend DistantJ, not reported this, since they in their games were not using the Joystick of the system.
I hope this information will help you to correct the bug, thank you!