This isn't a bug. Some people have experienced more lag and some less. I do actually get less lag, about 15 FPS usually, but I suppose the update just made the fps issue bigger and smaller for some people.
Yup ^
It is most likely just a corruption when the world was generating. If it was, when you try to walk through, it should act as though there is a block there, and it'll just stop you.
Block lag, maybe?
Hey, it was updated, swords don't break blocks now. It's not a bug.
This isn't a bug, and you admitted it... "I feel..."
Check F3, is the temple in a jungle biome?
I've been getting this too.. it's really annoying.
Why do we need to run to thoe cordinates?