Majestic Dash 8 in P3D v5. Having an install issue

[mspencer 432]

Whelp, I figured I'd throw this up here, because I've been back and forth with Majestic on this and there's no resolution, so I wanted to see if anyone else had this issue and a potential resolution.

I went and downloaded the newest version from the Justflight website, it shows P3D v4 but the installer has a v5 option. I installed it just fine in v5 when I first started using the new sim, but reinstalled due to some weird behavior.

Now, when I try to select the aircraft, it shows "No preview available" and will not load the airplane, it just keeps reloading the default F-35.

I've:
Installed as an administrator
Completely deleted and reinstalled all the MJC files
Started from the default scenario every single time
Run P3D as an administrator

Anybody have any ideas? This is the same install of windows I had the addon working properly in P3D v4 on, so that might be related?