At times, after claiming a domain, it appears incorrectly on OpenSea. Or if you added an NFT Avatar to the domain the changes may not take effect on OpenSea right away. It can take some time for updates to take effect and appear on OpenSea or Rarible.f
Refreshing MetaData
Search for your domain on OpenSea and click on it once it appears in the search results. Then click on the refresh icon on the right next to your domain name to refresh the metadata.
Now we wait, it can take some time for OpenSea to display the changes.
Refresh Metadata on OpenSea