I think after village & pillage came out for bedrock, I started to experience bugs where my game crashes after using riptide (and may also happen with elytra) I've had this problem for many months now. The thing is, this happens to me and other players with different devices in our realms.(Xbox one, PC, and I think mobile) I've heard a few times (I think) that those bugs have been fixed, but they still seem to be here.
Another type of this happening is spawning in water, and when chunks (try to) load in, my game freezes for a split second, then crashes. I may think this is a problem with chunk loading in water or loading them fast.
                         All of this especially happens when multiple players are on, and may happen in other dimensions.