Metamask: You are not the owner of this Collectible

Hi, I hope this kind of post is allowed here. Otherwise please redirect me to a better fitting subreddit.

I'm trying to add my Reddit NFT/Avatar or whatever you wanna call it to Metamask but what ever I try it keeps telling me that I'm not the owner.

I already added my Vault into Metamask and added both Arbitrum Nova and Polygon as Networks for MOONs and Avatars but when I try to add my Avatar using Polygon it won't let me.

I've looked through some other posts with similar issues but their problems all seemed to be solved by correctly adding their Vault to Metamask which I've already done. I also tried altering the Token ID because Reddit shows 5269 and Polygonscan 5268 but that doesn't seem to change anything.

Does anyone have an idea what I'm doing wrong?