Hi
The download is a .vpj file and two mpeg4 clips.
Both clips play as expected. The first clip on the timeline is WonLife.mpeg4. This plays for 18.384 seconds overall. There IS a section about 1.6 seconds long at the start of this clip that has sound but does not have any movement, but this is identical to the start of the same clip previewed from the clip bin. There is no error here in so far as VP is playing what is in the clip..i.e. The clip plays correctly.
The second clip is 2017-12-24_12-49-47.mpeg4 This is edited into two sections both of which appear to play correctly.
How did you edit the first clip (WonLife) from the main video? This might give a clue why there is a static bit at the start. Did you use Split or edit the start point with the IN/OUT marker? Was there a transition prior to the split?........etc.
With VP 5.32 (latest version) there is no evidence of any static video with normal sound with any of the above options.
Nat