Hi,
If we have a VRayTriplanar1 going into a diffuse and also the same node going into a bump map slot, the bump doesn’t line up with the diffuse in local object mode.
If it isn’t reproducible, let me know and I can upload a scene.
It would be helpful to see an image and/or a scene setup. Basically, the local space bump is meant to keep bump consistency when you’re scaling your object (bump scale is in object space), so it will behave a bit differently than just using the default “bump map” map type (bump scale is in world space). Are your objects scaled?