I'm also seeing this with Openshot 1.4.3 on Ubuntu 12.04 (libmlt4-0.7.6+git20120204-2). When I have a track with gaps, then the glitch only occurs at the last fade before the gap (but does that quite reliably).
I'm also seeing this with Openshot 1.4.3 on Ubuntu 12.04 (libmlt4- 0.7.6+git201202 04-2). When I have a track with gaps, then the glitch only occurs at the last fade before the gap (but does that quite reliably).