Transaction not yet indexed

AT2M4qqRC3bGM7PMZbdcFZVndAsDHVHHQCPgDXmQLUBqiaethNXVctkFGCMVvArt7dNrXGRGxUVADCDkMs7mymp

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