Hi, I’m using UE 5.4 and getting a strange white artifact that only shows up in PIE (Play in Editor) and in packaged builds. It doesn’t appear in Simulate mode or the editor viewport. The white shape seems to move or change size over time, and I can’t select it or find any mesh connected to it. I’ve tried turning off Lumen, ray tracing, Nanite, post-processing, and even removed most of my scene content, but it still shows up. I also checked for emissive materials or AI-controlled actors spawning something, but nothing fixes it. Has anyone seen something like this or know how to track it down?
