I wanted to find out from the rest of the community if they have come across the following. I'm currently testing Arc Hydro 64 bit for ArcGIS 10.1 (version 10.1.3143) and have come across a bug that was around in ArcGIS 10, not sure of the version of Arc Hydro. I run most of my Terrain Preprocessing steps from the Arc Hydro Toolboxes and not from within ArcMap. I'm currently developing a Python Module that will perform all my Terrain Preprocessing steps for me. The bug is this, if you run AdjointCatchment from the ArcHydro Toolboxes it produces an empty feature class although it says it has completed successfully. Only if you run AdjointCatchment from the Arc Hydro Toolbar within ArcMap does it successfully produce a feature class that is populated.
Regards
Regards