It’s literally how it sounds and it annoys the crap out of me that I bought it and it won’t give it to me
Don’t worry, you won’t have lost any items. What happens here is that the opening animation for the packs gets skipped over but the items do still get deposited in your REQ inventory. You need to hard reset your console to see the updated inventory in-game, alternatively you check for new items here on Waypoint: https://www.halowaypoint.com/en-us/games/halo-5-guardians/xbox-one/requisitions/categories/customization?ownedOnly=False