It may take a few moments to upload your video, please be patient and stay on the upload page as the video loads.
Once your video uploads, you will see a "Finish" button. After clicking the button, you will be directed to a new page that says "Your application has been successfully submitted". This may take a few minutes, so hang in there!
To double-check that your video uploaded correctly, after you see this final message, you can try to access your interview link from a new page and you should see a message that says, "You've already completed this interview".