Transaction not yet indexed

5Sk21nQtdPyDYWHLGFShjAGu7MKgTDG8j7aHTwva4wtob21hx1NfGo3CRGAoeYT3r7idPm5RbUagW31APAXyDJwE

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