I have try upload mp4 webm gif on chrome and firefox. And it show uploading for a hour. here is the file in the zip. <a href="https://drive.google.com/file/d/1wyDlqMqFS_qjz-X0lrAndoKQcT-MT2Ci/view?usp=sharing" rel="nofollow">https://drive.google.com/file/d/1wyDlqMqFS_qjz-X0lrAndoKQcT-MT2Ci/view?usp=sharing</a>