How to resolve a ‘ReFH 2 calculation failed’ error message with ICM

The WHS team released an update to ReFH2 (v4.0.8560) in December 2022 (available from the ReFH 2 Download page).
In some cases this update means communication can stall between the program and satellite software, such as ICM.

If ICM displays an error reading ‘ ReFH2 calculation failed: ReFH2 hydrograph data is incompatible/invalid…’ ensure you have updated to a new version of ICM which supports ReFH2 version 4.0.8560 or higher. You can do this by checking with Autodesk that you are on the latest version of ICM.