I have a incubator that is a converted wine fridge that we found on craigslist. It has worked great for me during my last 4 hatches. This time I have a lot more eggs in it (60 as opposed to 20 with my previous hatches) and I can't get the humidity down below 60%. Usually it stays steady at around 35-40% and then I bump it up to 70% during lockdown. Is this just from the number of eggs in there? Will it be a problem? Any advice would be very appreciated.