11-06-2019 11:21 AM
May I know what is the resolution of the video you're trying to play?
Probably your phone doesn't support high resolution playback,
Try downloading the file to your phone's memory and play it using your phone's default media player.
You may also check this article: https://gopro.com/help/articles/block/Quik-for-mobile-Supported-Resolutions-to-Copy-and-Share
11-06-2019 11:42 AM
It has worked previously but the last week or so nothing wants to load