Transaction not yet indexed

6421PdmPC6Dd3mrhRrxQy8soQCQLJcWrKafF88ndvAer8Leanh5vecGYWZzhtMSkiHgX7ypCP47gB9NZCLTWwQzZ

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.