Block breaking does not work if not using correct tools or in some cases it does not work ever(ie. dirt, gravel, sand, etc.). For example, it prevents me from breaking leaves with my fist or break trees without a axe. It allows me to punch once but it stopped as if there is no object there.

Started punching a block of dirt expecting it to slowly break because I wasn't using a shovel.

When I attempted to break the block, my fist punched once and did not continue. Then, assuming it was a mouse problem, I switched to a spare mouse I had, and it still did not work. So I was confused with the situation, so I went mining and all of a sudden I could not mine one of the stone blocks. Later on I placed a piston in the incorrect position so I tried to remove it. I pulled out the pic axe and tried to mine it and it did not work. This problem continued for every block in the game.

------ I loaded up a new world and the bug started
------ This bug is in this one world only