I exported a video in Premiere Pro and everything looks and sounds fine when I view it on my computer. Once I transfer it to my phone via airdrop (I do this all the time to post on instagram for clients) suddenly half the video plays in super slow motion including the music. Could it be how I am exporting the file? I haven't changed anything about how I film, edit or export. And all of the clips were filmed the same way yet only half of the video is in slow motion when viewed on my phone as well as the music which was purchased from envato.