I claimed all of the community celebration reward items before the deadline. However after the event ended, none of the customization are present in my character creator. I had the Noxcrew shirt and flight gear back wear still on, but once I removed them from my avatar, they were unobtainable in any capacity. None of the cosmetics appear on any of my devices. Its not that the cosmetics appear as locked, but rather they simply do not appear on the selection pages.