This crash happened when I broke a block with a feedback button on it (in creative mode):

http://pastebin.com/krPjMDPY

Get the latest version, already fixed.

Oh, all right

This happened in 1.7.10-4.4.5.44, which as far as I can tell is the latest version.

Excellent! That's fine.

@kenzierocks The latest version does not contain the fix. The next version to be released will.
@Forecaster Wait until the next version
This is a duplicate of #513 and #508