In Sketchup 2014, the double-click on a skp model on a network (not on local disks) leads to an error in environmental variables for Sketchup.
Because of that, extensions cannot initialize properly. For example, with SunExposure, Sketchup console will display a long error message indicating that many SunExposure files could not be loaded.
As this bug is independent of Sketchup we cannot correct it.
However there is a version a Sketchup 2014 called MA (Maintenance 1) that corrects the problem.
For more information, have a look at the technical site for Sketchup versions and look for the paragraph “What’s new in SketchUp 2014 M1“