Only the number of NFTs sold is displayed, and the rest of the NFTs that I still own are not listed

I made an NFT collection on the Ethereum network on the Opensea site
A number of NFTs were sold in the pre-sale phase
Now I revealed the collection
But in Opensea, only the number of NFTs sold is displayed, and the rest of the NFTs that I still own are not listed.
Why?
how can i listed all nfts