hey, i'm so sorry i didnt get back to this comment. i hadn't logged back into my account in a while and by the time you responded to this comment, i managed to find out the reason for the issue! turns out, they weren't saved correctly and the app was loading two versions - one with the custom items and one without. i cleared it all up, thank you for helping!
but unfortunately... there's another issue now. the app is constantly loading an authorization error on the app itself, despite the twitch authorization saying it loaded successfully. i've tried reloading and reconnecting my account, but it remains the same.