Need help to solve the problem with rotation of tracking objects

Hello, everyone

I am looking for solution of following problem:

I am using Optitrack Motive to track the markers that i weared on my finger and using Unity to create 3d objects.

And middleVR (free edition) for 3d classes.

If i move my finger, i will see the 3d object for finger move with my finger too. It works.
But if i sometimes rotate my finger 90 degrees or 180 degrees, the 3d finger object will jump to the opposite site and rotates 180 degrees back...

Video for problem:...

Need help to solve the problem with rotation of tracking objects