When breaking waterlogged block, such like sign, the game will crash

I'm building my house underwater, and I used a sign to sign the block which I want to break.
But when I finshed my work and break the sign, the game crashed.
I restart the game, the sign is here, so I try to break it, and the game-crash comes again.
So I think reasonly that the breaking of waterlogged block lead to the crash of game.