Sticker API is completely broken
needs more information
Wakamu
Uploading (or even editing a sticker Ingame) seems to make it not be returned anymore by the API that lists availables stickers, meaning that it becomes totally inexistant but still takes up a slot, meaning that you can easily end up with 0 sticker and can't upload anymore because slots are full.
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Tupper - VRChat Head of Community
needs more information
Can you provide some more info? Does this issue currently exist on your account?
I'd like to hand this to an engineer with an example, so it'd help if you have/know of an affected account.