Transaction not yet indexed

MPem35BKvKBJpMyb2z5srCq1FyZ9bWX46aGVLxqc5j2AcEKdJtpN9P2tbUo98voDhc3Jds7ENYPRw4BkEGhy7Hr

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