Transaction not yet indexed

MMgHQdcy8uj7dtzvS4sdZk3dqcf6ipsvGzoadoPK4DhgiSuhLzzN6TRqzRNcnBk1nWmJ9WNKjDcuHjMv7ydnUqQ

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