This was - and still is - the workaround for me. Took forever to find it. Just toggle the setting and it's all good. However, not an optimal solution for an unsupervised Mac running a 24/7 stream. If the computer reboots for any reason, I need to do this manually to get the cameras up and running again. If anyone has a suggestion on how to make this setting persistent, I would be super grateful.I had this issue come up with Sequoia install on Mac running OBS 30.2.3. My wokaround is going into Settings > Privacy and Security > Local Network and then toggle the switch for OBS... Off then back on and NDI inputs pop up in OBS