If the crosshair keeps repeating the cycle and never finishes, the screen controller is not registering valid coordinates.
Calibration updates the internal registers with a new baseline coordinate matrix, realigning the touch sensor with the visual display. Method 1: The Hardware Startup Bypass (Quickest Fix) mcgs hmi touch calibration
The you are running (MCGS embedded or standard) If the crosshair keeps repeating the cycle and
If the touch screen completely stopped working after a software update, a corrupted firmware or driver may be to blame. Reinstalling the MCGS project file or updating the HMI firmware can resolve this. mcgs hmi touch calibration