I hope that the Fsdreamteam people are working on this problem.
We cannot even start working on this problem, since none of us was ever able to reproduce it, across different systems and P3D versions.
Also, see one of the last posts:
I was on P3D 4.1 and when I installed 4.2 client and content the trouble was over.
So, clearly, if the problem could be solved by updating P3D correctly, it was never an FSDT problem to begin with. Not that I wasn't sure of this, but this last post if the final proof it must be something else.
And yes, as I already explained several times, fact it "seems" to go away if you disable our software, doesn't mean we are the cause. We are only triggering an existing problem, which you are not able to see with other addons, since not many use the new SDK feature which, incidentally, are made to IMPROVE performances, not reduce them, since we can use a more low-level access (full official and fully documented, of course), bypassing Simconnect. This, apparently, seems to require the sim to be fully updated and correctly updated.