just curious what this is...looks like some kind of streaming glitching 2018.3.0b9, cloned repo, open project, reimpot t: prefab, t: model happens in scene view, and play (game view) I have not done a build to see if it happens. EVGA 1070GTX - 416.16 drivers Tested: Lightmap streaming, enabled..disabled...Priority 0 to 100 Quality - Low to Ultra