Transaction not yet indexed

MMpVGQVa8xc2dJETDcziQKJSj2amawwZGUcmoZLJWR6FBk2oGRzBM8QRZsYM7z5cYST6FrfPZNUtPCFmvKiT3MU

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