Transaction not yet indexed

5MEFF7jLyUXFp7qP96TsqzGaUVVeHdcPGqeQnTWgkuuhJr8gZFZsd2gQ4F6CXMncyVBem4rGhRMGCfNyBn5mjTi4

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