LED Screen shows environment then goes black after a few seconds.

Hi, I’m working with an nDisplay setup through Switchboard, when I click to launch the project both instances launch with no issues, and the correct viewport shows on the screen, but then cuts to black a few seconds. In the editor window on the 2nd screen I can see that Unreal is still running, it’s just the nDisplay view that shows complete black. Does anyone have any idea why this might be?

It’s worth mentioning that I have another project where it loads fine and doesn’t cut to black, but I can’t seem to get this project working.

Any help is welcome as I feel like it’s a setting I’ve missed somewhere!