I have an iPhone 8 acting as a camera for my Tricaster Mini (at this very minute) and it's great. But I tried to add an iPad and an additional iPhone 8 and neither can be found by the Tricaster, despite being on the same WiFi network (a very robust network), and all included in the NDI Access Manager on the Tricaster. Is it an issue with the local device channel? I can't see any other problems with the set-up, but only the one iPhone works as a source.

Thanks