Event subprocess with error boundary event interaction does not complete execution

Hi,

with flowable 6.5.0 following problem shows up with a event subprocess:

If some execution gets propagated to an error boundary event (see screenshot), the execution stops at the end event and the event subprocess does not complete (the process instance is still active). In the other case (error boundary event is not involved / no BpmnError is thrown in the event subprocess), the process-instance completes normally.

Any ideas?