Transaction not yet indexed

MefMPHM9gb4zz1PM31Fb36GB3Xe6S3GWmx3v9BAy3Jnah1TCSuSNrzRJc9jtgyvTJisubX67ESTgmxpU5zKzUmR

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