I'm having trouble trying to motion track a video, because it loads a frame ahead or behind depending on whether I play or seek through it.

As an example: I load my .blend and then seek to frame 70. Then I open it again, but this time, I play the animation until it reaches frame 70, then seek there. All of the trackers are now off. seeking and playing

This sort of error isn't good when I'm seeking and playing a lot, as it causes my tracking to look early or late. Is there a way to fix or work around it?

  • 1
    $\begingroup$ Test with a more recent build of Blender, if the problem persists then follow the bug report procedure , and file a bug report - if it's broken you don't want workarounds, you want it fixed. $\endgroup$
    – zeffii
    Commented Jun 27, 2015 at 5:23
  • $\begingroup$ @zeffii No luck... I'll report it. $\endgroup$
    – Woofmao
    Commented Jun 27, 2015 at 16:15
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    $\begingroup$ More research shows that it's not actually a bug. I won't report it, I guess. $\endgroup$
    – Woofmao
    Commented Jun 27, 2015 at 17:18
  • $\begingroup$ @MaoHi Nice find! Now that the post is reopened, would you care to put the answer in the answer section down below? The question isn't really the right place to put the answer (but it's understandable given that the question was closed at the time). $\endgroup$
    – gandalf3
    Commented Jul 2, 2015 at 7:11

1 Answer 1


It turns out that this isn't a bug. I found that I have to check "Proxy/timecode" in the movie clip editor and set "Use timecode index" to "Record run." Now it works fine.


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