"When someone uploads an image in a post or comment there is nothing to prevent them from hitting the ""post"" button before it finishes uploading. If you post before the image is finished uploading the image will not be added to the post. I've gotten this issue a few times now from users complaining that their images aren't uploading not knowing they have to wait before posting. If someone starts the upload process that post button should become disabled until after the upload finishes OR even better would be to allow the image to finish uploading after the post is submitted and then append the database with the image path and show the image."