I've got the same problem. It just started happening today. I'm on 1.7.4, with a world originally created in 1.7.2. Blocks would break then instantly be back.
Also, after getting in bed, I am stuck and the game will not let me out of bed. The "Leave Bed" button is clickable, but it will not let me out of the bed scene. Escape does not take me to the menu screen.
I've got the same problem. It just started happening today. I'm on 1.7.4, with a world originally created in 1.7.2. Blocks would break then instantly be back.
Also, after getting in bed, I am stuck and the game will not let me out of bed. The "Leave Bed" button is clickable, but it will not let me out of the bed scene. Escape does not take me to the menu screen.
I'm using Mac OS X 10.9 on a Late 2011 iMac.