BPMN editor [Business Central]: Missing structureRef for Message when creating process

Create a new process. Create a process variable (e.g.: procVar of Boolean type). Create a start, intermediate catching, throwing or end message event. Set the Message property of message event to any value (e.g.: message01 ). Create Data Assignment for this event with: any Name (e.g.: out ), Data Type of procVar ( Boolean ) and Target to process variable ( procVar ). Save the changes and see the the source code of the process. Actual result The generated bpmn lacks structureRef for itemDefinition with id: $MESSAGE_NAME_Type (e.g.: message02Type ) Expected result The generated bpmn has structureRef for all defined Messages with value defined in assignments (e.g.: Boolean ).