Ursula, how long have you been growing orchids? Your collection amazes me. The collection of Neofinetia falcata and hybrids all blooming at once is stunning. I get excited about having even one bloom open. I'd love to see a video of your plant room and see what all is blooming at once.
Sorry about your problem Kathy. I have been wondering about mold. I bought one of those little ornamental foggers and was running it for awhile, but then decided it might be a problem in the summer and I don't really want a humid house this time of the year. Will run it in the winter when the air is really dry. Just misting and have some humidity trays for now.
Here is a photo I took of Enc. Atropine last evening. A couple hours later, it opened.