I just checked it again. It lets me choose a picture now.
Once I add a picture, text, or video it doesn't let me change the tab anymore after that still. However, that can easily be fixed by deleting just that slide and making another one.
The deletion problem I mentioned is still doing the same thing.
At the very top when of the page when you create a new slider not a banner it says something like "Slider #fc445eb440 title" and has a text box under it. If you forget to put a title into that, and then go to delete that whole slider the name has that code # in red, and says "title not provided." When you click delete on it the page reloads with no css styling at all every time, and it won't delete the slide. If you select it with another slide or by itself via the check box, and then bulk delete it won't delete it. The only way to remove it without messing with the database itself is to uninstall the plugin completely, and then reinstall the plugin.