Symptom
After saving and re-opening the same process model, some sequence flows become skewed(used to be perpendicular before), also seen in the convention check after saving again.
Resolution
This is a known issue and has already been forwarded to our developers to get this fixed. If you are affected by this issue and want to be kept up to date about this issue, please create a ticket in our Support Portal and reference the ticket number SPM-14370
As a workaround, you can simply delete the End event & create a new one and re-join the task to the end event (with a straight line) .
Keywords
KBA , BPI-SIG-PM-SET-CUS , Custom Graphcs for SAP Signavio Process Manager , How To