Loss of functionality after crashing Subsurface Utilities

Tonight I was setting up a small drainage design job in Subsurface Utilities (OpenSite Designer) when the software closed suddenly. Now I have a couple of problem while in

  1.  I can't see the dashed line showing the linkage between a catchment and the node it is connected to. The properties show the linkage exists, but I no longer see the graphical indicator
  2.  I can no longer select a catchment boundary and edit the vertex locations.

How can I get these functions back.

Details of what happened:
This is my first drainage project in OpenSite and I had place nodes and conduits and was in the process of adding catchment areas. I had added the first two catchments and attaching them to nodes. The crash occurred after adding the first few vertices in the third catchment.

The crash was silent (without error messages), closing OpenSite Designer completely. (like Thanos snapped his fingers)
When I started OpenSite Designer and the reopened the project, I got a message that Subsurface Utilities noticed a crash and there may have been some data loss.

I haven't noticed any data loss, just the loss of functionality above.