displacement bake "Stripes" problem

When I bake a displacement map with multires,

I get stripes according to the polygons
I tried playing with the MULTIRES resolution parameters and it didn’t help

What is the problem?

Hi,

I’ve found this: https://blender.stackexchange.com/questions/170280/why-im-getting-this-strip-lines

Check the last answer in there. Maybe it’ll help you

Unfortunately this is not it
This thing happens when I bake a model with a multires to displacement map.

Do you have smooth shading turned on?