LHCb reported that they got Geant4 exception with 10.4, when build materials of the RICH detector(C4F10) when CKVRNDX property was added.
Marc, please, try to assign the problem to Daren. Cheers, Vladimir
Reassigned to Daren, according to Vladimir's request
The fix will be available with 10.4 patch 1.
*** Problem 2036 has been marked as a duplicate of this problem. ***