Smart idea to place your racks in tents, here in California I don’t have the humidity levels you speak of and can thankfully leave my racks enclosed during curing.
I let my gummies set in the fridge for a day, even 2 in their moulds then lightly toss in corn starch before setting them on their backs on the racks, depending on, I’ll flip them half way through and if they call for citric acid after, I’ll toss before jarring / bagging.
Looking forward to hearing what has worked for you!