Played this game for a while but... PLEASE READ!!!

I used to play minecraft when I was little,Which was like 4 years ago,I was 8. now its has really cool updates but whenever I change creative mode to survival mode it just stays creative and same thing the other way around, trying to change survival to creative and it stay survival please fix. sometimes my data disappears after some hard work I would always have to rebuild it .please do something

Gbiao about Minecraft: Pocket Edition, v1.1.5