I was able to test six Premiums at the same time thanks to my Hidden Springs Festival lot.
I'm happy to report that (on my end) the Chocolate Fountain, Cauldron, Hypnotizer, Fortune Ball, and (much to my surprise) the Spellbook works fine. I was going to try out the Fountain of Youth, but didn't have time. I got distracted with the ice cream machine.
Seems the ice cream machine still doesn't like Festival Lots. I noticed this around the time Dragon Valley was released, so I don't know how long the bug has been around.
Next on the list is FoY, Ice Cream Machine, and Deep Fryer.
