Oh wow! I'm glad you figured it out. I was growing some pumpkin vines outside and they were only producing male flowers. When I planted some in my greenhouse, they produced male and female flowers. I literally got one pumpkin from outside, but inside I have multiple ones growing. I think mine is due to the excessive amount of water we've had this year in Panama. I see bees regularly around our place which is good.
RE: Homestead experiment verified why people are seeing garden volume failure!