Four days ago I donated to unlock the Tier 2 cosmetics such as the auras, overheads, and pets. None of them have shown up even though I'm 100% certain I used the correct ID code. I'm currently running Fabric 1.19.2 alongside Optifine 1.19.2 with a Sildurs shader pack. To my knowledge all of those shouldn't interfere with any of the cosmetics. I've selected multiple of the different options and made sure to press "change cosmetics" before opening my server to check if the changes applied, all times they have not. If anyone could help I would appreciate it!

Have you tried launching the game without shaders and optifine?