It appears that there might be something wrong with Addon Manager or Couatl in the CYVR download which was over written by the subsequent install of JFK V2.
No, there's nothing wrong with it. This problem has been discussed already here:
http://www.fsdreamteam.com/forum/index.php/topic,12398.msg94276.html#msg94276and here:
http://www.fsdreamteam.com/forum/index.php/topic,12418.msg94305.html#msg94305It was a result of another addon using an older Simconnect version that caused the sim to load that outdated version before the one we need, because we changed our installer to not always install the Addon Manager as the first loaded module (that would prevent this).
We reverted that change in the current installers, so they always place bglmanx.dll as the top of the DLL.XML file, but if you ran an FSDT installer that doesn't, the bglmanx.dll line is not at the top anymore, so P3D is loading an outdated Simconnect, because ANOTHER product using it is forcing it to do so.
So, you might want to check if the DLL.XML file under %APPDATA%\Lochkeed Martin\Prepar3D v3 has the bglmanx.dll section before any other, and if it doens't, edit it as suggest in the first thread I linked to place it at the top. Note that, running ANY *current* FSDT installer (even the Stand-Alone Addon Manager) WILL fix this automatically for you, as long you don't run another *outdated* FSDT installer AFTERWARDS.