Anyone knows what makes this error??
Model is imported from sketchup, UE4.18, lightmass compress unticked, lightmap 4096(for all), built in medium, Epic quality.
World lightmass setting:
SLL: 0.25
NIL:20
NKL:7
IL:4
IL:1
MANY THANKS!
P.S. Whole model imported from sketchup, all uv are auto generate while imported