Transaction not yet indexed

MMgYmCNphWZhiynraAPuEG2p4cxEGTzvpASKfA8ErRWHvG8QMPhp9fXFcsS3Db5XSZP9oC5brgMLfNjqvuxqQrA

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