Transaction not yet indexed

MtxWE5f9YzbLSC2knyG5hnPs9pUcXvsSmJX6uUhLUFurbQCsgCZHyjmoUmUpJt9zdDL8pVrCQjLiWLfTSTzfLQZ

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