Hey there! Sorry to read about this - we'd definitely like to help get your video uploads working if we can! Have you always had this problem, or did it just start recently? What kind of phone are you using? When you say you're not able to upload videos period, is this including using your native camera app?
Happy Sunday! I just wanted to touch base and see how things are going for you. Are you still having trouble with video uploads, or were you able to sort this out?