Take them out.
The chicks will be perfectly happy on the wire, which washes easily. Don't risk interfering with the humidity.
won't opening the bator to take out the paper towel interfere with the humidity??
can you mist the towel somehow without opening the bator??
Maybe the towel is not going to bother, just keep an eye on things.
many eggs have been hatched on paper towels..
don't panic, yet..
I agree with not panicking ..... take them out.
The danger here is that you will get very high humidity below the towels, and very low above. The chicks will struggle to get out of their shells. The risk in opening the incubator is small compared with the danger of leaving the towels in.
point taken.. take the towels out..
and the 1/4 inch mesh is just fine for chicks..