The world worked just fine the day before yesterday, which so happens to be the day prior to getting notified that my game had been updated with the Aquatic Update partial/demo version with the Experimental Switch.

The world has a ton of redstone piston contraptions and command blocks with either "testfor @p[x,y,z,r]" set to repeat/always active or "tp @p" set to impulse/require redstone. Another unique feature of the world is that it has no bedrock/land with all structures "floating". It crashes about 10-30 seconds after successfully generating. The faster I move towards a redstone contraption or command block, the faster the game terminally crashes. And it crashes even if i don't move and I'm not within the command block "testfor" radius.

I did not turn on the Experimental mode. But I have since made an EX version of the world on top of reinstalling Minecraft, deleting local saves and reinstalling the cloud save, making multiple copies of the world and clearing the xbox cache with absolutely no difference made.