Rafael,
I am not an Appery employee, but another user. I was having problems with Carousel hiding EVEN before the latest update. It would hide fine, but create other side effects that were unacceptable (like some temporary freezing behaviors).
So, I changed it - I created a 1x1 grid, called it "carouselGrid", set the padding of the single cell to 0,0,0,0 and put the carousel into it. Then, I can do
Appery("carouselGrid").hide();
This works very well. Maybe you can try it.
-Kal.