I am using Premiere Elements 11 video editor and have imported footage from my Hero 4 Black into a project. Several of the MP4 files have no video content only audio. The video files are viewable on the GoPro app and using Windows Media Player and Cyberlink.
Why can't I import all files and is there a solution?
Given that files play fine with the GoPro app, this can be related to the application you are using.