Transaction not yet indexed

MB4wbbpUjkrqLTr1o3dQjHVrt6MEDu3JjLjo4CQ2dmKRHJ7zCG678RJKVeRr57JDcMEHKPj9S3494ExC2Pqp9mM

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