Your problem happens because you manually switched to the 32 bit version of the Couatl engine, even if you use P3D 4.5.
If you did that because you had problems with the initial release, there's no reason to keep using that, since all the initial issues we had with the 64 bit version has already been fixed.
In any case, we fixed this bug even in the 32 bit version now, so if you run the FSDT Live Update, you should get it, but I still suggest to switch to 64 bit, since there's no reason to use the 32 bit version in P3D4.5 now.