I know this gets annoying to hear, but faulty hygro readings are almost ALWAYS the cause of these kinds of problems. If you've done everything else, if you've checked the seal in a couple of different ways and it is good, and you've had dishes of distilled water in there for 3 weeks...to me, it's GOTTA be the hygro. Just MHO, but if you haven't checked that hygro for accuracy in the last few months, you really need to do so again.It's been 3 weeks. I Know I should have skipped putting the beads in first and just put in water but after 2 weeks you would think the beads by themselves would have saturated the cedar. The hygro is fine. It reads 62% in my other identical JR humidor which is the highest I can get it because I live up north where my RH hovers around 30%. Very strange as the lid has the same tight seal as the other one. I wonder if the factory lined it with mahogany instead of cedar.
Sorry you having such a headache with this.