Error in graphics when packing for android

hello, you can help me with this problem I’m having when packaging for android, I do not know why that happens, I use the traditional OpenGl configuration of unreal default, I made the mesh in MagicaVoxel, but I still do not understand why the image is damaged so.

At first it seems that everything is fine, but when I change the map the textures slowly start to distort.


to see the error

link text

That looks more like a dynamic lighting problem but it could also be the textures. Does it do this if you build your project the really slow way with Full Rebuild checkbox ticked in your project settings and Intermediate folder deleted?