ConstraintCommonNet.dll error

OpenRoads Designer Connect Edition 2020 Release 3 Update 9 v10.09.00.91 upgraded from 10.08.01.033.

Error appears when selecting a terrain, no properties display.

File is present in C:\Program Files\Bentley\OpenRoads Designer CONNECT Edition\OpenRoadsDesigner\Assemblies

In order to carry out work I have to fully uninstall and go back to the previous version