I’m the one who posted: Buds in Grove bags drying out, when external humidity is low
As I mentioned later in that post, after playing around with several of my Grove bags, I figured out that the ones that had dried out (after being stored in low RH conditions, like 30-40%) were the bags that had NOT been heat sealed, just zipped closed. But the bags that I had heat-sealed, before the room RH dropped, remained in the desired 58-62% RH range.