Transaction not yet indexed

mMC64ZSY4M3NJM66mR1ecD8rCSUbTQUeL65fZGtF4G5hoGE78YNq4FqdsZZf4b7CDSHTQJAZb61DpMN5pKh5BxC

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