I just installed Legacy OpenStudio v1.0.14 on a new machine (Windows 10, Sketchup Pro 2015) and the plug-in seems to load but it exhibits some buggy behavior. When I click on the New Zone tool (or navigate to it from the menu) I get the blue plus sign next to the cursor but when I click to place the zone nothing happens. I'm also not able to open or save an IDF - when I click on the toolbar nothing happens. Strangely enough, though, the Shade Tool works just fine.
I've installed Legacy OpenStudio on a number of computers and operating systems and this is the first time I've had any trouble at all. Has anyone experienced something like what I'm describing? Were you able to fix it?