The very first thing I noticed is you have X-Plane 12 installed in your Program Files folder. This will cause unpredictable problems. Even Laminar recommend you install X-Plane anywhere outside of Program Files, like the root of a hard drive/partition. The reason being, Windows restricts writing to the Program Files folder. This is why the G5 can't save its config file, and it lets me know in the log (Access is denied).
As for the crash, I'll investigate this, but as far as what I can see, the crash is caused by a threading violation in the bundled libradio plugin. It's calling XPLMRegisterFlightLoopCallback from a background thread, which the latest release of X-Plane now enforces more strictly. I'll take a look and see what I can do with it. It may be worth trying the C23 again, after it's moved. I've seen X-Plane do some weird corrections when moved out of the Program Files folder.