If you see the "something went wrong" message, it means that your video has unfortunately encountered an error during the rendering process and has been dropped from the queue.
Our team is notified whenever a rendering video encounters an error, so chances are that we're already investigating the problem as you're reading this message. Once we've manually fixed the problem, we'll put the video back into the rendering queue, and you'll receive your video as usual.
We're constantly improving the system to reduce the likelihood of rendering problems, but in the meantime you can try creating another video. Try not to create a video that is too similar (same text, same media, same audio) to avoid encountering the exact same error again.