Transaction not yet indexed

4X21kpqSJsDq6cbdGC9XskczEGMEXFLNEU52E9fD9xK752KrNrefXMLM8Gd5W96GCDnQh4DyioeEtRvXUT1NMXFr

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