I have found 3 bugs that are annoying in Minecraft 1.14. First of, is chunks load slow or unload textures. The blocks are still there, but it's all invisible. I can see many chunks load in completely, before flashing, and then most load back in, but some becomes invisible. Second issue is rubberbanding. Noticeable if it happens when mining, or fighting mobs. Third issue is that for some reason, Villagers disappear. I have a data pack that I have confirmed works when villagers dies, but I get no message, so I don't think that's what happens. It has happened to me 2 times so far where I have had around 5-10 villagers, and then all disappear except a single one, and I have no clue what happened to them. I have used creative mode to spawn in new villagers again.