I can push a button but not make it work

Fishing while flying can make the fishing lure hover above the water

I put sound.json into 1.6.2 and switched to 1.6.4 once i finished playing with my friend then i had to download it again.

I logged off and when i logged back in some blocks were gone

It keeps making me download 1.6.4 even though i already downloaded it

I was building a mob spawn and my donkey despawn and it was name Dylan and a lead stuck it to a fence and had a haybale but it despawned when i was about 10-30 blocks away