maybe it is just time to try other tracking software which are still updated and getting new features.
Opentrack is a freeware and for Facetracknoir the developer is aksing a small fee.Both can work great and are a good alternative for freetrack.
https://github.com/opentrack/opentrack/releases
http://www.facetracknoir.nl/
Opentrack and Ftnoir supports also a lot more devices which can be used for tracking.
It is probably not the answer you hoped for but I think the best advise I can give you for this moment.
cheers Stormrider