sorry for the late reply! Life is too busy ;v;
So my project just started out as a normal UEFN project, using the large scale grid floor template I think? It’s been a while, but I remember mostly using that.
And during the playtest now, if I set my settings to Low for the Effects option (which changes to that polygon sphere dome in the editor view), doing that in-game still appears normally thankfully:
But yeah can’t help but think I might have done something earlier while messing with custom materials, I just can’t think what it would be. I’m just gonna say knock on wood, it’s working in-game and just a visual thing in one circumstance in the editor, so if it’s not broken, I won’t try to fix it lol.