Since the update in december, I've noticed that Track Forward does not work at all for me. It will let me use the Refit Pose option, but there is no automatic tracking. I would love to hear of some way to fix this.
I've also noticed the frame forward button and frame backward button do not work well. Forward doesnt do anything. The frame backward button skips back 2 frames instead of 1, which I would find more useful to get to the correct frame in case of manually fixing parts.

Those are EXACTLY the problems I'm having with iPi Studio, too!

Especially not being able to use the "Track forward" option is VERY annoying. I just click on the button, the application jumps to the first frame of my "Region of Interest" and then - absolutely nothing happens..

any ideas why?

A quick workaround is to convert your video to uncompressed AVI. You can use VirtualDub ( www.virtualdub.org ) to convert video - VirtualDub is free.

The reason of this problem is incorrect AVI index or outdated codec installation (like old version of Xvid). To avoid this problem, we recommend using latest iPi Recorder to capture videos - it has integrated MJPEG codec.