Transaction not yet indexed

21Mxp9P957g8PgvHAdHwgLpqyQZyoteNNBRpYetY6CfK9ptJkxAb49rNVAb3etzLpJi3R3yRbL5eaG4yo2aYvNNy

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