3467838 - 500 Internal Server Error - ´ZERO´ object reference is not possible occurs for CL_FPM_BICS_GRID_UIBB_ASSIST program

When clicking on a BICS grid cell from a FPM_BICS_OVP application a 500 Internal Server Error "Access using a 'ZERO' object reference is not possible" occurs and the following dump is found in the ST22 for the backend system:

Category               ABAP programming error
Runtime Errors         OBJECTS_OBJREF_NOT_ASSIGNED
ABAP Program           CL_FPM_BICS_GRID_UIBB_ASSIST==CP
Application Component  BW-RUI-FPM

Short Text                                                                                        
   Access using a 'ZERO' object reference is not possible.                                       

SAP NetWeaver

Web Dynpro ABAP

SAP S/4HANA

SAP BW/4HANA

SAP_BW 757 release

ABAP PLATFORM

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