I can see that your SMBX Folder is saved inside your "Program Files (x86)". While SMBX is saved inside my Desktop on my own PC it works fine. Maybe it has to do with Users PC's like specific permissions can be locked or something for no reason what so ever. Try to save/move your SMBX Folder inside your own user profile on your PC. If that is even the case.
I tried this, no luck. Thank you for trying to help anyway.
