Thanks, that's what I figured. The first incubator was a cheap one I bought off of Amazon, and I had a horrible time keeping the temperature consistent. I let it run for a few days before putting eggs in, and it seemed fine, but then it just progressively got more and more inaccurate. I had bought a pretty highly rated Bluetooth thermometer to keep track, and had another portable one in there with it to check for accuracy.
I woke up in the middle of the night to check it, and it was up past 102 (I had it set to 99.5). I cracked the lid to get the temperature down (I live in Florida. Even indoors, it's pretty humid), and got it back pretty steady in the upper 99's. When I woke back up a few hours later, it had dropped down to 97.2. I have everything set up my house where the temperature stays pretty consistent, and I had saw some people online suggest wrapping it in a towel to keep the temp more steady, but it was still all over the place. I decided it wasn't worth the stress, and got a pretty nice (and more expensive) one from TS.
The new one seems to keep the temperatures and humidity pretty steady, but I suppose the damage had already been done. Or maybe something else all together! I had expected some casualties along the way, so here's to hoping at least a couple hatch!