Rendering Multiple Orthographic Cameras Simultaneously (or similar)

Hi all I hope you’re well!

I’m designing a scene that I need to render two or more cameras at once at uneven pixel ratios, or multiple orthographic cameras and one perspective

One scene is for a ‘corridor’ 30x2m ( multiple projector set up, and the other is for a HD (1920x1080) LED video wall.

I want to use an orthographic camera for the corridor with an 8k resolution and a regular perspective camera for the LED wall, but any attempts to render different camera settings at the same time fall short.

I’ve tried using 4 cameras for the corridor and 1 for the LED wall, which works apart from the orthographic part, as soon as I try to work with orthographic cameras I get crashes.

Any help would be hugely appreciated! I’d love to use UE for this set up as every other part of it is perfect (building the scene, texturing etc).

Cheers!