Hi Beppe, thanks for replying.
See attached the nodes and the differences.
I'm using V3.08 by the way.

Left the displaced SSS, right without.

I'm having the exact same problem. Has this issue been addressed yet?
The material turns way darker, not the same as inverted normals, but as if the density has changed.
I also tried the older method with mixing the same material twice and using the displacement channel from the mix material, but to ...