skins becomes grainy when finalizing

[jroux2106]

When I try to finalize the character, the skin becomes grainy. Is it normal ?

before:

after:

[animate1978]

Unfortunately this is a bug that I cannot seem to resolve, not sure why it's happening but it's an issue for sure.

[Vidyut]

Is that just the texture? What happens if you reduce the normals/bump map in the shader?