Comment 92 for bug 520941

If it had been solved, it would have been marked as such.

When you look through the comments here you will see that there is more than one cause for this bug. Some solutions have worked for some but not others.

We think the major cause of this is a mismatch between ffmpeg & MLT in the number of frames that each reports a clip is made up of.

We think the solution to this will be our new library which will replace MLT.