Have you tested the humidity gauge on your incubator? If not, do that after this clutch is done. There's an easy salt test you can do:
https://www.wikihow.com/Test-a-Hygrometer
65% humidity during the last 3 days of incubation is a tad low; It should be nearer to 80%. But it's not awful. You have condensation because there's no ventilation. Are you quite sure there are no vents? No little plugs that might be covering a hole?
It's a good idea to use a separate thermostat and hygrometer in your incubator, anyway. The ones built into the incubator often don't work correctly. The first time I used my new incubator, I had three (3!) separate thermometers besides the one in the lid. All had slightly different readings, but the one with the MOST different readings was the one in the lid. I quit trusting that one.
Don't worry yet. Give it more time, at least until Tuesday. The "21 Days" incubation period is just an AVERAGE. Some hatch sooner, some later. There are many factors that might influence how quickly they hatch, mostly dependent on their size, and the temperature and humidity they've been exposed to up to this point.
