Ok, we need to get a little more drastic now. Could you please go through your plugins folder and remove all plugins except Gizmo, and then try again. If no crash happens, replace each plugin, reloading the sim each time, to see which plugins causes the crash. Then we can decide where we can go from there. The TBM will run without issue on a bare installation of X-Plane, but some plugins can cause conflicts. I f we find out what is causing it, we can decide whether or not it's the TBM's fault, or another plugin.