I work with HEC-RAS 4.1 and I have a problem quite similar with the one you presented here on june :
I’m also running a simple simulation (RAS 4.1.0), a river reach and three storage areas located at the end of a reach. As it didn’t work, I kept only one storage area and still have the same problem as yours : “The simulation runs properly, generates reasonable results (i’ve checked the hydrographs and so on), but at the beginning of the post-process i receive an error message “Incomplete data, the following errors were found: Storage Area:”BR1″ – is missing some initial elevations in the steady flow data.”, and the post-process aborts.”
I read your message sent to HEC and I tried to reduce computation interval but it didn’t work.
Did you receive any answer from HEC ?
Thanks
Benoît