I'm having the same issue.

I'm running AutoCAD 2014 - I.18.M.282 on a RMBP with OSX 10.10.5.

It happens in all drawings, outside of any specific command, when attempting to stretch a vertex of a polyline using the grip.  When the grip is clicked, the drawing file crashes and AutoCAD stays open but is frozen - requiring a force quit.  I've also audited the drawings and none have any errors.

Any fixes for this?

Thanks!