I recently redid my DIY incubator because it broke (Mother fell on it) and I used Silicone, Specifically Silicone 2*+ and am incubating eggs another neighbor gave me but whenever I open it with it running the incubator smells... Sour. Is this a bad thing? Should I redo my incubator? It shouldn't be a huge issue, just need everything to recure and get new eggs lol