invisible double chests and when you click on them the game crashes and when the game crashes i sends you back an hour.

Every 30 minutes double chests start going invisible and shulker boxes also crash the game. when the game crashes and you go back in you lose to up to an hour of progress. since the update we have more bugs than before. if two ppl or more are on a realm the game lags out so much to the point that ppl leave the game until they can play alone. mobs will move around through glass and other blocks. Please fix these issues soon .