Studio exports empty blend [SOLVED]

I haz a problem. I uninstalled Blender 2.78 and installed Blender 2.79. I was thinking 2.79 had features 2.78 does not, but I could be mistaken, of course. Anyway, now when I export a mesh from Studio the mesh is empty. I uninstalled 2.79, deleted every single folder and file belonging to Blender off my C drive, restarted my PC, reinstalled 2.79, double-checked to make sure my file paths are correct in Studio. Problem persists.

I can't find any posts here that will help me. Studio acts as if it's exporting a mesh but the mesh is empty. I get no error messages.  

Studio's log file, however, says this:

[v3.1.5.4] Error [BlenderUtilities.RunBlender:0] Blender returned a potential error:

Error: EXCEPTION_ACCESS_VIOLATION

I thought maybe it was a permissions thing so I changed it for the Blender folder on my C drive. Problem persists. 

Edit: the release notes for Blender 2.79a mentions problems with security. Maybe the problem is a bug with 2.79. I'll try 2.79b and see if it works. 

Edit: seems it was a bug with 2.79. The release notes for 2.79a mentioned bugs involving security--in other words, permissions. I installed 2.79b. Problem solved.