Is anything else highlighted (red)?
Attach the file here that exhibits this behavior.
Right click the line near the desired end and select Delete Coincident Constraint. This will also work on circles that share the same center point.
Access a broad range of knowledge to help get the most out of your products and services.
Start with some of our most frequented solutions or visit the Installation and Licensing Forum to get help installing your software.
Upgrading to a 2015 product? Make sure to check these out 1st!