I'm writing for my son. He has a PE Android edition of Minecraft that he just purchased. Build: 435056, Build Date 2017-08-03, V 1.1.5.
He is working in Mesa Plateau, and is trying to switch from survival mode to creative mode. He hits edit for Mesa Plateau, then he hits creative in default game mode and then he hits play. The issue is that it doesn't change over to creative mode and stays in survival mode.
Is this a bug issue or is he I doing something wrong. Your help is much appreciated.