Yeah sometimes they have bad days at the factory. I had one sent to me with either two right propellors or two left propellors (can’t remember). It just went in circles. They sent me the correct propellor quickly. There is a reason I recommend getting the extended warranty. The original betas broke down all the time. I think I had 4 of them break down on me while still under the 1 year warranty. No one here has reported the beta 2 breaking down yet though and at least 3 of us have one from their original run of those…. But yeah get the three year warranty if you haven’t yet! They are good at honoring their warranties, otherwise I couldn’t recommend buying one until the beta 2s prove their durability.well decided to get the betta 2 to try out. put it in the pool and the right propeller fell off and sank to bottom. evidently the fastening screw was either missing or loose enough to fall out with initial use. bummer. i was anxious to see its performance during our next wind event this weekend. they are sending replacement screw, but in the mean time I can scrounge around the garage and find something small enough to work.