Tethering error with orange line

Hi,
I Have always used tether shooting but since today there is a orange spotted line aorund the button to make a shot and I can´t make any pictures with my camera. I had never seen this orange line and hope someone can help me. I tryed my Nikon Z7II and Nikon D850 and also two different cables, but the error is still there.

Thanks

Florian