I have been trying to transmute some items myself and for some reason i no longer get the message saying it will become account bound instead it immediately soul binds it. I have been wandering why they don’t allow us to just account bound items as we see fit while maintaining the equipping rules for any particular gear. I think the new rule that Teofa quoted is indeed correct and for items of high lvl you may find you have problems getting items to transmute into account bound.