Cant change light map coordinate index in mesh editor

Development Rendering
1

Hi guys!

Need some help here.

Until yesterday in 4.12.5 everything was going just well.

Today I started having this problem whit the meshes imported to Unreal 4.13 from 3ds unwrapped and everything. I have been reading everything that I can find to fix this issue but I cant find the answer.

When I change the UVchannel manually it’s just like nothing happened.

I take some screeshoots, may help a little bit ( half spanish and the other half in english )

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I do like this

Model in Sketchup > Export to FBX format > Unwrapp the fbx on 3ds > export every mesh unwrapped in fbx > Import the meshes in unreal> UVs and mesh editor laugh on me > ;_;

Nothing on this help me Cant change light map coordinate index in mesh editor - Rendering - Epic Developer Community Forums

Thanks for your time

PS: Sorry for my bad english