I might be having a similar issue since MCPE 1.6 on an IOS device (iPad Air). When I am loading one of my worlds (world size 21.6 MB) the app appears to crash out. Sometimes I can play for a few seconds but usually the app shuts down before I can interact. I noticed that I am spawning near a part of the world where I have a lot of aquatic mobs like tropical fishes. In other worlds, I can play fine, but when I travel to an area where I had previously (prior to updating to 1.6.0) created a lot of aquatic mobs, then the app crashes. Then I can no longer play that world again since I am spawning in that “bad” part of my world.
I might be having a similar issue since MCPE 1.6 on an IOS device (iPad Air). When I am loading one of my worlds (world size 21.6 MB) the app appears to crash out. Sometimes I can play for a few seconds but usually the app shuts down before I can interact. I noticed that I am spawning near a part of the world where I have a lot of aquatic mobs like tropical fishes. In other worlds, I can play fine, but when I travel to an area where I had previously (prior to updating to 1.6.0) created a lot of aquatic mobs, then the app crashes. Then I can no longer play that world again since I am spawning in that “bad” part of my world.