On PC.
I press C to make character jump.
Character jumps then looks down at feet, then up in the air.
Mouse control is unusable. This lasts for 5 to 10 seconds.

This has just started, was not like this a few days ago.

PC. Win 10. OpenTrack head tracking.

Cheers.

If I turn off PITCH output in Opentrack the problem stops BUT I lose pitch head tracking control.
Does not affect YAW head tracking control. For some reason.

Will try experiments with Track IR output only and then FreeTrack output only. brb.

Both do the same thing. Will talk to Stanisław Halik at Open Track to see what they think.

hmm....