Camera motion solving problem

I’m trying to track this movie I have and it works fine, all the trackers seem to work fine and I get a low average solve error…but when its done solving the camera motion it says that some data failed to reconstruct and above that it has “no camera data for frame 1202 -1500”. My movie ends at 1500 and I have trackers that go that far so I don’t know what’s going on.

Also, if I look on the graph it shows the blue camera line going to about 450.

Thanks in advance for any help.

p.s. I’m using the latest 2.6 release