There seems to be a serious error in the bump channel

[serdar_turanl]

bump map does not work when rotated 90 degrees but works when rotated 180 degrees. this problem does not exist in vray cpu render.
and only bump channel has error
Video 2

[tashko.zashev]

Hello.

This is expected right now, we have to implement Shading graph for Bump maps and this will allow the map adjustments to be rendered correctly.
For now you may need to us the UVMap modifier to rotate it, or to rotate the texture in Photo editor.
Will add a link to this thread in our internal dev system, so we can post an update when we have any progress on this topic.