FCPX Range export to Master File - Problem in IDVD

I have a 100 min clip in FCPX which I exported by selecting the first 50 minutes into one Master File and the Remaining 50 minutes into another. I prepared two IDVD projects, each with a respective 50min clip. The Project with the last 50 minutes burned correclty and plays everywhere. The project with the first 50 minutes burns and plays correctly but it cuts the las 2.5 minutes of audio. I have tried diferent ranges, from 5 minutes to 50minutes and it repeats the error. This happens only if the selected range ends before the FCPX timeline ends.

Mac Pro

Maverick