Suppose I create a expanded subprocess with in which I create a activity along with a DataStorereference and and add an DataInputAssociation to the activity with in the subprocess. Now if I collapse the subprocess, the DataInputAssociation arrow is still visible. Can you please fix this?
Please share a BPMN diagram/screenshot illustrating the issue you’re running into. Furthermore, if you think you’ve found a bug, please create an issue in the bpmn-js repository. Thanks. 
Please find attached images for the proof of the DataInputAssociation hanging when the subprocess is colapsed.