Created one giveaway, two identical giveaways were made.

So I made a giveaway and entered the details. I had made some other giveaways earlier that day and I only could only make one more giveaway with my current feedback score.

Due to my computer lagging, I got impatient and hit the "confirm" button again. Which essentially submitted the form a second time. I got a page of a giveaway created and didn't think about it. Once the time came to give away the prize, I noticed two identical giveaways had been created and there were two winners that were meant to receive the same game from me. Which also meant I had 5 simultaneous giveaways when my limit was 4.

Now this didn't matter much since this was a current humblebundle game and it only cost me $1 to get another copy. But this bug COULD have cost me more money than I would have been comfortable with spending. So, beware and don't hit that button twice.