Unable to break blocks directly above you.

Normally, we can break blocks under us, above us, and in front of us normally, but now when we try to break blocks directly above us, our fists swing and plays a whooshing sound without the block breaking, as if we were punching the air. I was trying to chop down a tree and it wasn't breaking and a Creeper snuck up on me and exploded, causing me to respawn far from where I was trying to break the tree. I would take a screenshot of the bug, but it would be nearly impossible to.