It might be moisture,
@Glenn shared his knowledge with us in here somewhere, Huh. Why didn't I think of that, Basically filament can come from the factory already too wet, and will suck water anytime it can, so now I plan to dry rolls before use, even if they’re new.
Or it could be bed temp, or nozzle temp…
Maybe do a temp tower, https://teachingtechyt.github.io/calibration.html