I just finished a shoot with the Arri ST and we had an issue with the video tap.
We were shooting 2.39 and had a 2.39 ground glass in the camera - through the eyepiece everything was looking fine. The video tap however was transmitting an image that was cut off. The whole image appeared pushed to the right so that there was additional black to the left of the frame and the right hand of the frame was truncated - probably about 25% of the frame was missing. It was an issue that we were seeing on all monitors plugged in so I don't think it was monitor related. Does anyone have any ideas? I sadly didn't take a photo to illustrate the issue.
Also, by accident we managed to access the video tap menu, something that we couldn't repeat when we wanted to try a reset of the tap. We were shooting at a weekend and the rental house was not open to troubleshoot. Perhaps if we'd have been able to access this we would have been able to try fixing it there.
I don't see why it should be relevant but we were also shooting a modified ST to shoot 3-perf.