Good to know, but there was no removing my frustration at the moment of the half dozen I made.

K, yea sounds similar to my setup. I’ve had issues where the fermentor lid wasn’t seated right and gas leaked before where you’d see the bubbles. Just a thought. I assume you opened it up and there’s no foam?

What makes you think it’s not fermenting if you can’t take a reading? What are you fermenting in? Is it possible it is going but you just have a leak?