It should be fixed now, but if there's still problems let me know? Also! You can click on the individual folders and submit them there too.
Sooo for example, if you have a digital picture, you can submit it normally (it would go to the featured folder), and click on digital fanart and submit it there and it'll also appear there. It'd help me a lot of you did this since I can only copy one at a time and it's really slow since I have to reload the page every time.