Blocks disappear upon placing

So there is this bug where I would sometimes place a block and then a split second later it would disappear. It would also disappear out of my inventory and then as soon as I get another of the said block it would just magically re-appear in my inventory. I have no idea how to re-create this bug because it seems to happen at random times. Although it think it might be caused by mobs standing to close to the block you are placing.