Was that object mirrored on object level by any chance? If there were any negative values in $.scale.controller.value or $.objectOffsetScale that would explain it.
that is not correct, there is definitely a difference from object to tangent, object gets a way better range from the vertex normals that tangent space doesnt. like bakeing a cube is better using object than tangent as tangent after 90º with 2 normal verts gets a bit weird, and object can hold the nmap without a problem.…
you need to lay out your uv's for each object in "multiple uv tiles". look at the bottom picture and text. http://download.autodesk.com/us/mudbox/help2010/files/WS1a9193826455f5ff4e421d7d11bf108001d-5967.htm if you want to paint on multiple objects that have the same material with each object having its own texture. setup…