I am not with Laminar Research.
Had a look at the Log.txt file and noticed a couple of issues.
1. Are you running a Steam version? If so you need to raise your problem with Steam. Steam is not the official X-Plane version. It is a 3rd party product. This forum is for the official version from Laminar Research.
2. Are you using an AMD graphics card? I have been reading all the postings in the forum and noticed that AMD card users are currently having problems with the latest X-Plane version (XP11.10). They have do do some tweeking of files for the card. Apparently it works. Scroll back through the postings for a few days to find a possible solution.
Have a look at the answer provided by jroberts in this posting at http://questions.x-plane.com/14632/after-the-new-acutlization-some-avioncics-dont-work It may help.