If you make a manual edit to add or modify an amount of crypto sent in exchange for an NFT, that sent crypto will appear as an NFT with a "View NFT Details" link instead of the "View Transaction" link.
The symbol on the crypto sent will appear as the same symbol as one of the NFTs received and the number of the NFT will appear after the symbol for the cryptocurrency. For example, ETH #2306 will show on a mint of NFT #2306.
This affects any fungible token on the "sent" portion of an NFT transaction if the crypto is added manually, or if you change the amount that is automatically synced.
This issue seems to be just a visual problem in the interface and does not affect tax calculations.