Stack two snowblocks crashes 100% of the time.

Updated to the latest snapshot today and tried to build a snowman. I could not place the second snow block without the game crashing. One time it sort of glitched and restarted with two snowblocks stacked, but as soon as I put a pumpkin on, it crashed again, stealing my snow blocks, but replacing the pumpkin in my inventory. Thanks for everything you do!