Transaction not yet indexed

MEui4J75jFf2nycsEPLqZ6Dd1cdkWi9LLAaRGDGW9iyxGCVEjwWMqtDQDn6jhhSw6WgXXsqTDLP2epvrL21Dpjk

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