Audio problem when going back

[falco2000]

Hello, I'm playing some mp4 videos and sometimes, when I go back using the "short backwards jump" or similar, the audio doesn't play. What could be the reason? Here's info about one of the movies:

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avprobe version 9.16-6:9.16-0ubuntu0.14.04.1, Copyright (c) 2007-2014 the Libav developers built on Aug 10 2014 18:19:26 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'mymovie01.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42avc1 creation_time : 2014-01-01 06:00:00 Duration: 02:30:00.00, start: 0.000000, bitrate: 17386 kb/s Stream #0.0(eng): Video: h264 (High), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 16997 kb/s, 50 fps, 50 tbr, 50 tbn, 50 tbc Metadata: creation_time : 2014-01-01 06:00:00 Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, fltp, 384 kb/s Metadata: creation_time : 2014-01-01 06:00:00 # avprobe output