I don’t know if it’s a bug or my legendary poor RNG, but after over 800 hours of gameplay and thousands of slams, I’ve noticed one strange thing. Namely, if I prepare an Exalted item for slam to a unique and copy it at the end of Rune of Creation, then when I go to use it to slam an item from LP2+, and in addition to the selected affix, it copies one or two random affixes. When I do this using a copy of the Exalted item, it always copies the same affixes as before, as if copying an Exalted item through Rune of Creation already had an internal record of what it will slam to the item for a specific selection.