XPLM is what is apparently causing my CTDs right now, according to my log. LMK if you all want to see it, I'll be happy to share.
So this is what I have done today:
1. Installed the plane - initially, all was fine - loaded in, loaded the TN, it worked fine, started up, engine fine, had to do errands, closed the sim.
2. Windows updated to new build. Logged into X-Plane. Had to re-authenticate with X-Aviation. Did so. CTD.
3. Came to forum, read Cameron's thread, uninstalled / reinstalled, loaded default C172, updated license, loaded TN, right panel stayed black, starter would not engage. Switches appeared to operate, but did nothing.
4. Loaded regular model - success! Was able to start plane again. Had family over, had to log out.
5. Launched X-Plane again. Tried TN again. TN doesn't work. Tried to load in regular plane. CTD - XPLM plugin.
When the CTD occurs, a reboot is required - so a dependency I can't easily identify is preventing X-Plane from launching (Steam edition - says X-Plane already running).
I can run the regular variant fine.
I hope this helps! I just did a short flight from Riverside to Long Beach with a quick touch and go in Chino just to see how it feels, and it was wonderful. I'm sure it'll get sorted. Happy to be on the bleeding edge for this one - I loved the Islander, and want to continue my support (and really wanted a great SR-22!)