RAM Connection Standalone - Column-Beam-Brace Connection - Assign Single Plate connections from the Design\Assign tab

Using RAM Connection Standalone, for a CBB (Column-Beam-Brace) connection, I cannot assign SP (Single Plate) connections from the Design\Assign tab.  I get the following error:

I can assign a double angle connection, then force the connections to single plates in the design edit.  Last week before a STAAD update, I was able to assign this connection from the Design/Assign tab.  Any thoughts?