Transaction not yet indexed

21C4A3ccMJyFCV8rxPcFNXh842hUwrzjKgTsx3sozoJrgLVKXFFFu4aC7KQzKW1xTmMzjHgHWyJk2hP2R4LL8A4t

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