Yes, I have the same problem with Waveshare touchscreen, THERE IS the actual mouse pointer, that acts wild and unpredictable move, back and forth, left and right. When I need to tap a button, I have to "herd" that pointer to the button position in order to be able to tap/click the button, which is a very hard thing to do. Kalkov, have you tried yourself, using Raspi emteria with a touchscreen? How to get rid the mouse pointer?