Castles do have a moving crate, oddly enough
that is odd...
however, these snow tiles were in a chest, in a bag, and were not put out on display. I only use them during the holidays.... and when I went into that chest, in the bag, the original stacks (there were 3 stacks) each had about 20-30 tiles in them, for there are different types of snow tiles.
BUT, I go in, and those 3 stacks are now only... 3 tiles. period. no stacks. just 3 individual snow tiles.
and the new snow tiles won't stack with em.