Multiblock ctructured grids in CGNS-format
 

I have some difficulties in using the multiblock structured grids in cgns-format.
The problem is when I'm loading the written solution results (the cgnslib was used to write these data) into the VisIt or Tecplot, the data in each zone become separate, i.e. the visualizer interpret the multiblock grid as a set of independent grids.
Had somebody the same problems with CGNS & multiblock grids?
May be, somebody has an example of "correct" cgns file?

Thanks.