Ошибка версии

Hello, mojang, I came across an extremely strange and even terrible mistake in the 19w34a snapshot, when I played that foliage on the trees began to disappear and the trunks of oaks and birches disappeared. Enderman still does not teleport when I beat him, it happened as in the creative and survival. I also want to apologize for calligraphy, since English is not my native language.