3400375 - Manage Workflows Fiori application - CX_BADI_MULTIPLY_IMPLEMENTED exception

• Manage Workflows - for Business Process Specialist Fiori application template selection fails with the following message: An error occurred while reading the workflow. The operation has been canceled.
  AND
• UNCAUGHT_EXCEPTION - CX_BADI_MULTIPLY_IMPLEMENTED dump occurring (ST22 transaction) in ABAP Program CL_SWF_FLEX_BADI_FACTORY======CP.

• SAP Business Workflow
• ABAP PLATFORM 1909 - Application Server ABAP (SAP_BASIS 7.54)
• ABAP PLATFORM 2020 - Application Server ABAP (SAP_BASIS 7.55)
• ABAP PLATFORM 2021 - Application Server ABAP (SAP_BASIS 7.56)
• ABAP PLATFORM 2022 - Application Server ABAP (SAP_BASIS 7.57)
• Manage Workflows - for Business Process Specialist Fiori application
• SWF_PROCESS_WORKFLOW_CONDITION_DEF BAdI

WF_GDPR, SWF_WORKFLOW, WFMSTD, IF lines( lo_badi->imps ) > 1, RAISE EXCEPTION TYPE cx_badi_multiply_implemented, The exception of class "CX_BADI_MULTIPLY_IMPLEMENTED" was triggered but not caught anywhere in the call hierarchy, SWF_FLEX_DEF_SRV, SCENARIO_ID, Identifier of the scenario, CL_SWF_FLEX_BADI_FACTORY, SWF_PROCESS_WORKFLOW_CONDITION, RFC Error: Runtime error occurred in backend system, /IWFND/CM_BEC/029, SWF_WORKFLOW_CONDITION_EVAL, multiple use, SWF_PROCESS_WORKFLOW_CONDITION_DEF , KBA , BC-BMT-WFM-DEF , Designtime , Problem