3666844 - Editing ERP Customer results in 500 Internal Server error

Attempts to open an existing Customer and selecting Edit in the UIBB ERP Customer a 500 Internal Server Error occurs

An associated shortdump in ST22 also exists - 

Category               ABAP programming error
Runtime Errors         UNCAUGHT_EXCEPTION
Except.                CX_WD_CONTEXT
ABAP: Program          CL_WDR_CONTEXT_ELEMENT========CP
Application Component  BC-WD-ABA-RUN
 

 Error analysis
     An exception has occurred in class "CX_WD_CONTEXT". As this exception was not
     caught, a runtime error occurred. The reason for the exception
     occurring was:
     Element is not (or no longer) bound to a node

Information on where terminated
    The termination occurred in ABAP program or include
     "CL_WDR_CONTEXT_ELEMENT========CP", in "IF_WD_CONTEXT_ELEMENT~GET_INDEX". The
    main program was "SAPMHTTP".

    In the source code, the termination point is in line 4 of include
     "CL_WDR_CONTEXT_ELEMENT========CM00I".
    include "CL_WDR_CONTEXT_ELEMENT========CM00I".

SAP Master Data Governance - Customer Governance

KBA , CA-MDG-APP-CUS , Customer (Central Parts) , Problem