I can't think of anything in Sandbox+ that could possibly cause that, nor have I heard of that problem until now. I would try removing all mods, reverifying integrity on Steam and testing to make sure the issue is solved in vanilla. If so, reinstall GoS and test, then reinstall Sandbox+ and see if the problem persists.
First Thanks for all your work on the complilation, and for the quick reply. I am actually trying that right now. Ill let you know how it turns out.