I ran into some odd artifacts in some .IES files but not all. The model I imported w/ datasmith had lights and .ies files coming from Revit to 3DS Max first, then UE4. I tried manually moving the light down to make sure it wasnt being clipped by the fixture geometry. I also tried placing a new point + IES file manually to make sure it wasn’t originating from the particular Revit file. I’m using 4.24.3 and baking in medium mode. Any suggestions are appreciated. Thank you.