Most problems of that kind come from conflicts between plugins. My first guess would be FScloud or Headshake :
Loaded: C:\Program Files (x86)/Steam/steamapps/common/X-Plane 11/Resources/plugins/fscloudplugin2_64.xpl (FSCloudplugin).
Loaded: C:\Program Files (x86)/Steam/steamapps/common/X-Plane 11/Resources/plugins/HeadShake/64/win.xpl (com.simcoders.headshake).
You should try and remove them, see if it solves the problem, or even just enable them directly from X-plane plugin menu, which would be faster, but maybe not such a fully reliable test.
Anyway, it could be from any other additional plugins, but you should try these ones first.
Once you have identified the guilty plugins, you should try and contact the relevant developers, to see what they can do to improve compatibility.
It might also be a good idea to test all that on a brand new install, I don't know if you can install a second copy so easily with Steam, though.
For more guidelines about troubleshooting, this link will surely be very helpful :
Please provide some feedback, so that all this thread can be as useful as possible for other users.