Cant delete worlds!

I can't delete creative worlds. Used to be able to. I'm using an apenz a909 9" dual core 4.2 jellybean tablet.

*What I expected to happen was clicking the delete button, the world would delete.

What actually happened was...:
After being asked if I really wanted to delete my creative world, and confirming it, the world would remain on my list of worlds.

Steps to Reproduce:
1. Use the same tablet and/or operating system and open mcpe.
2. Create a CREATIVE world.
3. Play or load/run the server, then try and delete it. If it doesnt delete, that's your bug.