Works for me when my iPhone is on 3G. The baking tray is about 2 inches high. It can be tricky to get the avatar moving, you need to tilt the tray. It works better some days than others too. Could be the weather. I can hatch a 10k egg in a few hours. It can work well with incense too.
Previous Post: three MAJOR UPDATES COMING TO POKÉMON GO – LEGENDARIES, GEN three, TRADING, PVP, BREEDING?