I am using VideoPad to paste the truncated GoPro tracks of a sporting event together into a single video.
The issue is that there is no audio during sequence preview. Mute button on audio track is not on. Audio waveform shows for each of the tracks. Audio level bars in the preview window are active when previewing sequence. Exported video has perfect audio.
So audio is present on tracks and is being accurately shown on sequence and in preview, but is not output to speakers during preview.