substance painter baker -ID issue-

MmAaXx

Hi people

So I baked an ID map in painter but I noticed that the color is not uniform, you can see in the contrasted image down here.
In xNormal I have not this problem.

Froyok

How did you export the image ? Which file format did you use ?

MmAaXx

from in the project shelf, right click > export resource.
it export by default in png 16bit.

I got the same problem also with plain normal map, there is always this grainy effect.