We started a cross play survival world and we have built quite a lot and put days worth of effort into this world with no issue. It started when we would stack our dirt up and after 4-5 blocks up it would push us off like we jumped off ourselves and every time we would harvest crops some would take 2 hits to break as they would spawn back in.  It has gotten worse as we now take random hearts of damage that nearly kill us and then randomly push us off into lava whilst bridging and instantly kill us.