HCS pistol, armor coating and victory pose not showing up despite linked account and showing on twitch

Hello, sorry if this is a frequent kind of post i’m kind of a forum noob. I was alerted to the drop on twitch on the final day that they were available and so I headed on over and watched myself some halo content in order to get sweet sweet loots. I followed the instructions and linked my twitch with my steam account and my 343 account at the waypoint website, and the skins and pose show up in my inventory on twitch but have received nothing in game. Wat do? my account is Cramborghini on xbox/pc and my twitch username is trillowisp

ty for any and all help friends