Transaction not yet indexed

EX1x21QbHs6YNuwUTZ2LbPepb7amBkrEiZyC2GCu5kxZzHBFFnrbeg5vA8jjWwnamkAPDVRF5ZPFE1iXBdb6zYP

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