I’m having a similar problem too… My vídeo is 99,93% smaller than the original timeline… This is: I’ve rendered a 640×274 h264 file… and it was ok… with 100% lenght… but when it cames to blu ray h264, I have this problem… I’ve try it three times… but with exactly the same luck…
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I’ve seen that some people, in the net, had this same problem… But haven’t seen any solution… maybe that’s a bug…
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My project has 1:32:20:15… and the video ends, rendered, with 1:32:17:04… causing sync problems… as the the sound finishes with the same 1:32:20:15…
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If anyone knows how to help, please do.
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João Marco