I would try a 0.4 nozzle with 0.08 layer height or 0.12 (no need of 0.2 nozzle for those layer height) with standard layer width. Also would try to print a couple in same time to let more time for filament to cool down

Just wondering if request you see blocked on tracker control could only be because they updated the block list? Probably best to open an issue (github or else) with one of those apps to find the truth.

Except winter when heater is on, it’s nearly always over 50-60% (and up to 75). I almost never dry my filament, but i work most of time with one open spool at a time. Once opened, my spool last between few days to couple of weeks. With high humidity (65 and over) i usually start to get strings after about a week. Never had strings with 45% humidity except spool that arrived already humid