AMR is suggesting I use a 143 item that is in my bank vault instead of the 445 piece I already have equipped.
It does this randomly on several toons.
Why is it even looking at my bank vault?
We would have to see your character to give you a more detailed answer. You can do this by clicking the “help” link next to the big Best in Bags section header, then click Create Support Post. It will generate a snapshot ID that you can copy into a reply to this thread. With that we can see your character.
We always consider all of the gear that you own when optimizing your character – everything in your bank and inventory. The only thing that we don’t look at is stuff in your mailbox or void storage.