2f0ae633-a472-4711-8d75-615f24a6f1ee

I recently started doing mycology and have poured and innoculated my first agar plates. I used 400 ml water, 12g potato flakes, 8g agar - agar, 4g of corn syrup and 5 drops of orange food coloring. I brought it to a boil and let it cook while I read instructions that said immediately remove from heat. I hurriedly removed it from the heat and poured it in a media bottle. I pressure cooked the bottle at 15 psi for 20 minutes. Then I poured my cups in my home made fume hood and let them sit overnight. I innoculated in the hood using spore swabs of 3 species. All the cups have this except the cup I did not inncoulate as control. Any idea of whats going on?