WEC
up to 30% is still well into the range that can cause that problem
you sound like me when my blood pressure was 214/182 and i insisted they release me, because it was higher when i came in
if your issue was starting now, and you said the humidity was 30% everyone would agree that this was causing your problem
you have a losing combination (for whatever reason, don't kill the messenger) your room, your inks, your machine. as i said, it could be as simple as a missing ground deep in the bowels of the machine, we may never know, because no one is going to spend the time to diagnose. i know i repeat myself, but it is really for your benefit. BOIL A LARGE POT OF WATER. once the issue is happening it will take a huge swing of the pendulum, the other way to end the cycle.
how many days printing have you missed? we are all on your side and want to see you printing, but you have to make the effort. get that humidity to 45% and you will be able to laugh about this ,and all the time we wasted getting back to normal