So the original issue was that you cannot see the high quality effects when playing in PIE. But if you actually possess the pawn, which should be happening at start, then you do see the high quality effects? And it’s just the ejected editor viewport that doesn’t have the right post process effects?
I’m unfamiliar with UDS, so I’m not sure where those settings really live. I’m guessing it provides an Unbound PostProcessVolume for you, and pawn camera can override those. The editor viewport can also override them via the Scalability settings or other “View” settings.
If UDS is executing Blueprints on Begin Play, it might have its own way of managing these settings