Thanks for taking the time to tell me about this! I think I know what happened - the pin just dropped straight down without actually changing its angle. Looks like I'll have to put out one more small hotfix after all XD
That's actually not even the first level yet, just the main menu, and fortunately, it shouldn't prevent you from checking out the rest of the game. Try rolling the ball down a slope so it knocks the pin over, or (since this is the main menu), you could also just tip it manually with an object in your hand. I left this in mostly to help demonstrate the concept of a pin up, since that's important to the game. The one pin already tipped over is also done on purpose (if you go back to my game, try grabbing the crate and knocking the other two pins over instead!)
Crazy Machines is indeed also an inspiration, but as I grew up with The Incredible Machine, that one was the primary driver behind all of this. Glad you like the concept! =)
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Hotfix 2 is live now in the web version if you're interested in checking it out!