It appears that everything has been minted correctly however the validate is failing with a 429
https://rinkeby-api.opensea.io/asset/0x1b437042fe29c8fa555bdae6b45d769fc753bb1b/1/validate/
This is odd cause I can go directly to the URI with no issues.
https://gateway.pinata.cloud/ipfs/QmVsE7CTyExEkPwiepZ82W8xRpVtEWdHJMFm9FTNt7LCiZ