Are you trying to post large videos? Have you tried uploading short, low-quality videos? Does the problem persist? Have you tried turning your device off and on again? Please send me a video recording/screenshots of what's happening to support@waveful.com with the video you're trying to post attached, it will help us figure out what's going on!
When selecting the image, in addition to the camera and gallery, you can also choose the Magic Gallery at the bottom right of your device.
