This is an 0.12.0 bug, posted pre 0.13.0
*renamed to without spaces
It wasn't present in earlier versions. Spaces also exist in world names created before this time and they haven't been renoved
Also chat doesn't work 0.13.0
I can't use a keyboard either. I have tested it on things like Notes, Mail and my browser as well as normal iOS. It just doesn't do anything in MCPE
Device: iPod Touch 4
iOS: 6.1.6
Still in MCPE 0.14.3, iOS 9.2.1, 9.3, 9.3.1, 9.3.2, iPod Touch 6th gen