I have a PC and iMac. Both are on the same LAN.

I use to have NDI running great on both machine.

And I used to use NDI a lot in Zoom.

Zoom used to display the NDI input option in its camera area. Like this:



However, all in a sudden NDI is no longer an option on my camera for Zoom.



I do not see the NDI video on my Zoom meeting anymore.

Can someone guide me to recover my NDI video input on Zoom, so that the video generated on my PC could display on the Zoom meeting in MAC?

I found the cause and solution to the problem.

In fact it is neither a vMix problem or Zoom problem. It is an Apple iOS problem.

Apple turned off its support for certain camera options it deemed obsolete, which unfortunately included NDI.

Just follow this instruction and turn the legacy cameras back on. You will be all set:

https://support.apple.com/en-us/108387