Avipas 1280 cameras and Atem switcher Visca port

I have Avipas 1280 PTZ cameras set for visca port 1259. In the ATEM software camera control on my 1M/E Constellation HD switcher, I cannot seem to get it to work neither on ports 1259 nor 52381. There are no errors shown when adding the camera in the ATEM configuration. Am I missing another port setting in the Avipas port configuration to enable camera control via the Atem switcher?
93641:2763403