The last few pre-release versions no longer exhibit this problem for me. Opentrack is free, still being developed by the programmer, and I have used it for over two years. If you go to the Opentrack Wiki, https://github.com/opentrack/opentrack/wiki, there are links to detailed methods of setting up Opentrack.
I haven't used facetracknoir in a long time. Try both and use whatever works best for you!