I am worried but hopefull after reading some threads about cuttings recovering.  My RDB cuttings donated by a very generous member rooted well and were looking great until about a week after transplanting into gallon containers.  they stopped growing and dropped thier leaves.  I have in the mini greenhouse at about 75-80 degrees and high humidity.  Anything else I should do????

Keep them out of sunlight.  Also, you might consider covering them with a large zipper bag with just a couple of small holes in the top.  Spray the inside of the bag to create a high humidity environment.  Also, make sure you soil is not too damp.  If it is damp, punch some more holes in the side of the container and possibly angle it at about 45 degrees to aid in drainage.  I had one do this same thing after a recent transplant and I moved it in the garage and spritzed the leaves every 2-3 hours without adding any moisture to the pot.  It was too large to cover with a bag.