I also have the exact same issue reported here, and by several other users over the last month. Completely clean install, finally got a TrackIR... pretty disappointing that I haven't been able to use it in anything other than IL-2 and Elite Dangerous due to a perfect storm of bugs like these.
Windows 10 x64, up to date.
Intel i5 750 running at 3.7ghz
16gb ram
nVidia GTX 970 dcsPheener.zip