Humidity Problem

For some reason, ever since I removed the auto-turner the humidity won't go past 55%. I thought it may be caused by the egg lying too deep into the 750mL take away containers so I replaced the containers with takeaway lids, and so far the humidity is sitting at 54%. I have filled all the water troughs and even added a container of water. I'm going to put a blankie around the hovabator to trap moisture and see if that helps. Don't see why humidity is so hard to raise since it was happily sitting at around 60% before. Hmm... I'm wondering if it could be the plastic (container/lid) that is actually blocking the water. I've removed one of the lids to free up some room and see what happens.

Quick update 8:52PM- Humidity at 59%
11:40PM- Humidity dropped back down to 54% *sobs* (I removed the blankie because it was insulating the incubator at a steady 38.2 degrees. Since the wrong temperature is more deadly than humidity, I sacrificed the blankie. Temp now sitting on 37.8)