Adding video cases "Missing parameter: Video" error

If in the dropdown list of the  New slide button you choose to add a video, and you can't, just an error appears, that "Missing parameter: Video", that can appear, if you have special character (for example: 🔹 ) somewhere in your video, like in the title or description. These kind of characters are stored in 4 bytes, but by default databases are using utf8 encoding, which can only save down 3 byte long characters. So to make this work, you need to change the character encoding to utf8mb4 in your database. Check out this video to see how it's done: