I’ve already looked Erorr : Object has wrapping UVs. - UE4 AnswerHub and https://wiki.unrealengine.com/LightingTroubleshootingGuide#What_is_this_.E2.80.9COverlapping_UV_error.E2.80.9D_non-sense_when_I_build_lighting.3F but nothing works
I have a problem with multiple objects of Military Pack Part 1 on Market Place, they have 2 UV channels (channel 0 and channel 1), but when I try to change channel (Light Map Coordinate Index) nothing happens, it stays on channel 0.
If you have a solution, I’m interested
PS : I’m french so there may be errors of translation.