Believing that a picture is worth a thousand words, here's a jpg screenshot of a vMix screen that shows my problem. This issue started only 2 weeks ago after years of no problems. You can see the PTZ camera input in the preview window is just fine and if you look closely at thee TV monitors you will see they are also fine. The issue is the inverted colors in the live window. It's coming from the HDMI output of an Ethernet splitter that is also feeding the TV monitors. It's connected to vMix through an Atem Mini HDMI port and is seen by vMix as a camera input.

What do you think is the cause of the problem? No components were changed. HDMI splitter HDMI out port? HDMI cable from splitter to Atem? USB from Atem to PC. Software issue?

Thanks for your opinions and assistance.

Screen Shot 03-13-24 at 12.51 PM.PNG (1,951kb) downloaded 1 time(s).

Looks like it might have been a RGB/YUV color-space mismatch issue, sending in one format and the input expecting the other.