I just minted a new NFT and the Moralis API is returning NULL for the Token url. However, the NFT does show on OpenSea.
The API call:
https://deep-index.moralis.io/api/v2/nft/0x5c164A809ebe225853C4fa16a524C82945d8215c/4?chain=polygon&format=decimal
To view on OpenSea:
The token URL is valid:
https://ipfs.moralis.io:2053/ipfs/QmWnoudcMrdeUyUwkWZ2mTbt9R7aqKxmnGpTcisURgfkFf