Scene too bright with custom skyboxes

Hello.

If I set the ambient source to color white, everything works more or less as expected but if you are close to an edge of a plane with nothing below (and more of the skybox is visible) every object turns pure white. As soon as you return to the center of the plane, everything is back normal.

If I set ambient source to skybox everything looks ok, but only with the default skybox.

But no matter what skybox I download from the asset store, all look too bright, with the same effect described before. As you can see in the pics only moving the camera a bit in the scene view makes the skybox saturate dinamically and everything turn white.

Linear rendering and HDR on. I have tried every setting in the global ilumination tab to no avail.

 

Ok, I guessed myself, almost by accident

It is the HDR in conjunction with adaptive-reynard tonemapping that was causing the problem

Thanks for help