I'm not from Laminar Research, just a fellow simmer in the UK, but it would be very difficult to determine the cause of this problem remotely without further information?
A couple of questions therefore:-
1. Is this issue something that has only just started or has it always done that when starting a new flight?
2. Did you make any changes to settings, software or hardware before the problem started?
3. In any event, it would be best if you could upload your X-Plane 11 Log.txt folder to your original Q&A forum post, so that others with more knowledge than I can make an assessment as required.
If you're not sure how to upload your X-Plane 11 Log.txt file, then please see the PowerPoint slides I have prepared with suitable instructions in the following link:- http://questions.x-plane.com/?qa=blob&qa_blobid=4700438865003572066
Please could you advise further?