Camera Calibration works only when it wants to

I have been beating my head against a wall trying to calibrate the camera on my A350 (firmware 1.10, Luban 3.9 and 3.8). I was able to calibrate successfully once. And yes, I have been successfully connected to the printer via WiFi. This started when I couldn’t get the camera capture feature to work. It would just hang and do nothing or show a few squares and then hang. The I got it to successfully calibrate but now I was able to do camera capture only once in a while. The head just tracks to the left, stops and does nothing - so I can’t position the design on my material using the camera.