Okay! Regarding PointLight crashes - I found a strange workaround to allow for Point Lights without crashing.
Have not tested in Preview 4, but this was the finding in Preview 3.
I needed to enable RayTracing first, then add point lights, and that served a s the ‘Key’ to add point lights without issue.
Because then I could enable and disable Raytracing and add as many point lights as I wanted and UE4 would not crash, no matter what I did.
Now, I was always running the -dx12 version of Preview 3, perhaps that was an issue here.
Like, maybe if I had run non-dx12 it would have accepted point lights fine from the outset (in Raster/non-Raytrace)
Stephen, also attached is 1 screenshot of my 4 crash report logs I created and submitted today while testing…
THX!