New worlds I create after the update and worlds I had before the update, do not switch between game modes (creative and survival). If I try to switch an old world (that was on crestive before the update) to survival (after the update), I am unable to do so. The game will say that I have switched, but when it comes up to play I have no health or hunger bars. I can still access the creative inventory and I am still able to fly. This is the same is the same if I start a new world in creative and switch to survival.

Old worlds that were on survival before the update are stuck in this mode, as well. The game will register that I have changed game modes, but when the world is loaded to play, the now world that I have now switched to creative still has health and hunger bars, no creative inventory is accessible, and I can not fly.

All attached images are used with a new world in order of creative to survival with a preview of the world