Open attached process LineSplicingInsideContainer.bpmn . Alternatively create a similar process with any two connected nodes inside any sub-process. Drag the node from canvas over sequence flow inside sub-process. Actual result The sequence flow is red. Expected result The sequence flow has the same colour as the sequence flow during line splicing on canvas (outside the sub-process) in case the line splicing is allowed for the node that is being dragged. It is currently set to blue. Otherwise, nothing changes, hence it is red.