Deleted objects still appear

Has anyone else noticed when deleleting messages in sequence diagrams (community edition), that the thicker vertical bar often remains despite the message being deleted? Anyone know of a fix for it?

Dear Jason,

This is a bug in sequence diagram and it has been reported to our development team. As a workaround you can right-click on the sequence diagram and select Recalculate All Activation from the popup menu.

Regards,

Antony.