1. Chunks don't load properly and crash my game and or/make it so I cant move or fly around
2. lighting is completely ruined and I have had to pick up and put down all the glowstone ive put down and lava and torches give off no light which has made me stop playing entirely
3. villagers that I have carted from thousands of blocks away for their specific trades are now untradable wasting hours of playtime. I know this isn't a bug but I don't understand why new villagers couldn't have just been affected and not villagers already collected/farmed and used by players in old world saves. 

I haven't played more than 15 minutes because this has ruined my whole game and wont be playing till its fixed. im assuming theres many more bugs as these are literaly base game mechanics that shouldn't have changed at all anyway? confused on why lighting was changed at all