helo,
just instaled and (reinstaled because of this problem) SketchupPro 2015
Layout when starts choose itself automaticaly template and hangs,
(template dialog window stays on but hidden),
it is impossibl to work witch file and you cant save or quit?
only force quit
otherwise when starting by clicking on specific file looks fine.
I discovered that in fact template is not (yet) choosen automaticaly.
Only dialog box for selection of template remains hidden - and software is waiting for user to choose.
By accident found that by redusing window size by draging bottom/right corrner , dialog jumps in and selection can be finnished up.