Hi @dysonant, welcome to the forum!!!
The idea here is that it should work fine without user intervention and Hypno should always find the best resolution for its current setup.
The thing about resolution questions is that in the Hypno there is “context” resolution (The resolution the engine renders into) and the output (scaled) resolution ( the resolution your display/capture card asks for and/or displays).
The resolution you will see in OBS depends on your method of capture, if your capture card asks for a different resolution via HDMI Hypno sends this res out with native upscaling.
If simply plugging in the usb to record NDI without attaching any HDMI device you will get the native 720. If the HDMI is attached, the NDI output res will match the resolution the HDMI connection asks for. If you’re using a capture card it will simply spit out the res it asks for.
What is your end goal/issue here? is the aspect ratio wrong in OBS? or is it just widescreen?
Please note there are also canvas and output resolutions in OBS so it may be changing resolutions on the software end.