Missing audio at the start of published Replay file
I have created a Replay file, where I have imported a mp4 video file. The mp4 file is video and audio (a recording of a webinar). I have problems hearing the audio at times, however when I close the file and re-open it, I can hear the audio from the start without problems. When I publish the file, it is cutting out the first 10 seconds of audio (it was 20 seconds when I first published it, however when I have re-published it to my local drive, it reduced to 10 seconds)
I have a Track B image for the first 16 seconds of the file, (this has an introductory slide showing), however I still want the voice over from Track A playing for the whole thing. (The voice over does play, but only from the 10 second mark when published.)
I hope this make sense! Thanks in advance for your help.