RTSP 4K to WebRTC Not Working

[virtualbitzz]

I have a bunch of Reolink cameras that are 1440p and a couple of new ones that are 4K.

The 1440p cameras I have no problem with. I use the addon in Home Assistant, and the WebRTC lovelace card. I'm able to define the sources in the .yaml config file and view the streams via the lovelace card in WebRTC.

The 4K cameras are where I have a problem. If I drop the resolution to 1440p, they come through in WebRTC no problem. However, when I bump the streams up to 4K the streams will only display in MSE, not WebRTC.

For one of the cameras the 1440p stream is fine, however with the RLC-843A if you drop the resolution instead of transcoding it just digitally crops the image! I need the FoV on this camera so cropping / dropping the resolution isn't going to work.