Cannot click on anything

So I’m kinda making a ‘dream’ airport using sandbox and I’ve got a good bit of it built out but suddenly I cannot click on anything. I have tried saving and loading, restarting the game, restarting computer, and validating files through steam and nothing has worked so far.

Save Link:

Any help with this would be greatly appreciated.

This bug was to be fixed in this update. Apparently, the issue is a bit more complex.