I found this literally tiny texture bug :
While taking a very very close look onto the new Concrete Material i noticed that it got some sort of grid shaped texture seams :
this texture issue is actually only visible on minimum clipping distance /maximum zoom in
My pc info :
Win10 Pro -Creators update
GTX 660 TI oc2
Newest n-vidia drivers
Intel core I5 2500 @3.3ghz
8gb ddr 3 ram
Studio settings :
EDIT : new brick material has the same ; sorry if its by purpose but just wanted to say.