It is used as a bump map and not a Normal map.
Plus we tried to lower the power and it almost gives the same result:
It looks like an imprinted texture rather than a bump.

Is it because we are using the maya Plugin?

We've been testing octane for quite some time now, and we can't seem to make the bump look correctly.
This is the bump map
goodyear_original.jpg
The first image was used as a normal bump.
Normal Bump.jpg
The second image is the same but inverted.
Inverted Bump.jpg
We're getting the same result ...

I don't think this will resolve the problem, tho i will try it, cause it wouldn't explain why its working without using scatter for the same exact scene and poly count.

We were testing Octane to see if it could render the grass scattered with particles, it actually worked but we had a problem.
If rendered while using octane instancing(scatter) the assigned shader to the scattered object would come out Grey.
Particles Issue-02.JPG
But if rendered without using ...

Thank you for your reply,
We actually tested the solutions you gave us and we tried the instancing:
-For the glass it worked, tricky tho cause you need to make it according to each scene and viewing angle, but it worked.
-As for the white dots, it worked for most of the hot spot but not all of them ...

We've been testing Octane maya plugins for 2 weeks now, we've read the pdf that comes with the plugins plus the one with the stand alone and we where impressed with its capabilities , but we've came across several issues we'd like to point out:
-We know It was pointed out many many times already ...