Hi!
I’m having trouble with a material.
I connected the Mapping node with Object from Texture Coordinate and changed the projection method to Box. The scale is ok and the object is (normally) correctly unwrapped 
The material was retrieved from the freepbr site, and it looks ok on the preview.
The object:
The preview:
Nodes in shader editor:
No matter how many times I try to modify the object or the nodes, I can’t correct the problem. Could you help me?
Thanks a lot 
Can you try to make UV Unwrap and connect Texture coordinate with mapping using UV instead of Object.?
I think your problem can be the UV map.
Set all the texture nodes Blend slider to the same value.
And try setting them all to zero. It looks like the blend slider is causing the texture distortion.
thanks for your reply!
Unfortunately, there is still a problem. The mapping is strange, usually it comes from the scale but here the values are very close to 1.
it looks ok once I’ve changed the projection method to flat, but I wanted to use box to take advantage of the blend mode (as I’ve been able to do on other textures).
thanks also for your reply, unfortunately it didn’t solve the problem either
an example with blend set to 0 for all nodes :
I don’t have the displacement setting in my material menu, can you please show your material nodes ?
By the way, your material is so clean 
The rendering I used is Cycle rendering.
And the rendering you use seems to be an EEVE rendering.
The two rendering tools have different settings.
Please refer to the video. (EveE Settings)
