If you are using Just Flight Traffic Global, you may see some AI Aircraft with weird issues such as the landing gear sunken into the ground or effects not displaying correctly. If you see anything out of the ordinary, please comment to this post.
I recently noticed that the ATR42 AI Aircraft's front landing gear was sunken into the ground. I was able to find it's folder, and I modified the front landing gear contact point to fix it.
Here is it's folder...
Lockheed Martin\Prepar3D v4 Add-ons\TrafficGlobal\TrafficGlobalFleet\JFAI_ATR42
Open it's aircraft.cfg file with notepad, scroll down until you see [contact_points]
Change contact point.0 to...
point.0=1, 24.856, 0.00, -6.9, 1181.1, 0, 1.442, 55.92, 0.8, 2.5, 0.9, 4.0, 4.0, 0, 0.0, 0.0
Notice the only part you should change is the 4th entry (after the 3rd comma) which is listed above in red.
I will continue to fix these issues as I notice them during my flights. It's best to keep track of these fixes, because this program is continuing to be updated by it's developers. Chances are these issues may be overlooked in future versions, so they'll need to be applied again.