Riding a horse in Minecraft Bedrock with the C&C experimental features on produces some seriously wack results. First, every mob in a three chunk radius will freeze. The rest of the game works as soon as you leave that area, since I was playing with other people at the time who said their game was functioning. Second, you become immortal. Any means of damaging yourself will prove futile. Even leaving the area doesn’t fix this. Players are unable to inflict harm on you, through both potions and manual means. This might be only my problem but it happens every time I attempt to ride a horse. Every world that I have ridden a horse on, I cannot die. Even when I close out and open it back up.

How to recreate:

Open Minecraft Bedrock on iOS 7, version 1.17.40
Ride a horse without using a saddle in an attempt to tame it
Watch everything stop around you