I bought Lightfall on Feb 27, specifically redeeming it at 4:47p.m. EST on Steam (purchased via Humble Bundle). I have email receipts of both the purchase through Humble Bundle and the Steam redemption, and on the steam redemption the product name is "Destiny 2: Lightfall PO (ROW)", I would think that PO would mean pre-order. However the Quicksilver Storm exotic in the archive says its a pre-order exclusive in the red box, despite supposedly pre-ordering. Is this an error or did the window for the preorder exotic close before I bought it?