Hi
"......Missing in your portable project are MOV files 3983 and 3984. However, they are listed as Sound Files, where normally an MOV would have video. ...." (Perhaps there is an incompatibility here ?? can MOV files exist in two forms?)
The vpj file from dropbox (there were three files) downloaded the project but it was missing IMG-3984.MOV... but .....Type: Sound Clip??

However despite this oddity being missing I carried on loading. The File IMG_3983.MOV (which should be a video clip (??) loaded as a sound clip to the clip bin as Borate points out....

HOWEVER, the VERY odd thing is that IMG_3983. MOV plays as a video in VLC...

In fact the download was ALL audio!... and this played.
The next very odd thing is that I could load IMG-3983.MOV DIRECTLY to the VP clip bin (and not via the vpj file) and it loaded correctly and played normally with the sound......

It seem therefore that the vpj file is somehow corrupted and sees the MOV file as just audio. Perhaps this has happened when the project is saved as a portable file? Does a normal Save Project vpj reload the project correctly?
Nat