Transaction not yet indexed

1MDKHn1Wi17nfKX4bNL7y4nUvWEX5P3eq59cPXdmorXQQsBaacGfyXX9R72atpcTxuCNm4PpcwPSQsWj5m5PBLb

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