ZBrushCentral

Maya to Zbrush - uvs problems

Hi to everyone!
I have a problem with the uv layout when passing from maya to zbrush. The workflow I follwed is this:

  • make a simple cage mesh in maya
  • import the obj in zbrush for sculping
  • exporting back to maya for uv mapping
  • import again in zbrush

Using this procedure a have no problems at all with exploding mesh, and I can use the new uv layout to export normalmap with zmapper as I expected. Problems cames when I save my work as a new ztool. When I reload the tool or just after saving it, if I try to regenerate normalmaps I see that my uvs are messed up!

Any ideas? Thanks!