Update: plasticky smell is gone. However, I'm having trouble keeping the RH from swinging. It likes to go from 65-68. At first I just had a half pound of Heartfelt beads in there, but I put in another full pound earlier this week. Didn't seem to help the swings that much. I then read about plugging the drain hole, which I did on both the inside and the outside earlier today using duct tape. We'll see how it looks after 24 hours, but as of now I've seen it swing from 65 to 67.
The cigars look fine, but I did end up with a split wrapper on my Oliva Serie V Lancero I smoked today, one where I cut it (the non-foot end, don't know the terminology) and one about a centimeter long further up the stogie. I'm assuming this could be from the RH swings, but I'm not sure. The split wrapper in this case did not affect smokability. I examined all the other cigars, especially the ones that had been in there the longest, and they look fine.
I may end up either hooking up an Oust fan or adding another pound of RH beads. Kind of makes me wish I would've opted for the 70% beads instead of fighting it down to 65%, but I'm too deep in to change now.