Before, a few days ago, I could export as Unreal template, import FBX on Blender and make adjustments, then export again for Unreal.
But now when I import on Blender, when in pose the shading is broken (image 1), when I export to Unreal from Blender, like before, there are a lot of errors (image 2).
If I export direct from AccuRig to Unreal it works fine.
It seems all FBX templates has this problem with Blender now.