Transaction not yet indexed

55X21pAuQhBcuDWDmX4LEkWeUMEjwM8iPFt6chegtbHA1fY38RmwxVsRUP3nVyfG7hvkAxXBMRU4KtfMTASEnki2

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