The HEC-RAS 6.3.1 setup package was updated on October 6th. The original setup package for 6.3.1 released on Sept 30th automatically uninstalled HEC-RAS 6.3 if it was installed.
This issue has been corrected with the setup package downloaded after Oct 6th. No other changes were made.
Major Issues
Issue
Description
Can't Complete Geometry When Number of Pump Stations Exceed Number of Structures of Any Type
If there are more pump stations in the model domain than total structures (inline, lateral, SA/2D, bridges) geometry property tables will not be able to complete, preventing a model compute. Workaround: Add dummy internal SA/2D structures until total number of structure equals or exceeds the number of pump stations.
Computing Arrival Time Grids Fails and Throws Exception
Computing Arrival Time grids in some larger 2D models fails and will throw an exception
2D Bridge Curves Being Recomputed for Each Simulation
The rating curves for 2D bridges are unnecessarily being recomputed upon each simulation run.
Observed Data for Reference Points Not Plotting
Reference Points with Observed Data are not plotting in the hydrograph plot. (Version 6.2 is correctly plotting observed data.)
Observed Data for Reference Lines Not Plotting
Reference Lines with Observed Data are not plotting in the hydrograph plot. (Version 6.2 is correctly plotting observed data.)
Observed Data for Cross Sections Not Plotting
Cross Sections with Observed Data are not plotting in the hydrograph plot.
Minor Issues
Issue Description
RAS Mapper option for creating an "Infiltration Layer From Land Cover/ Soils" is no longer be greyed out
Shear stress units (English and metric) were displaying incorrectly in the RAS Mapper legend
In the Layer Properties window in RAS Mapper the preview legend would not display if the landcover layer had many classifications
1D Model post-processing failure - Error reading observed WSE.
Fixed SA/2D connections not keeping original to/from if it was unable to convert to a 1D structure.
Fixed SA/2D connections converting to 1D structures when they should not have
Fixed lasso lines sticking around after switching tools without completing lasso line