Transaction not yet indexed

MFkXe4a2KCJ9Em8ejK8cnXWZBwke4UpJ4eAcJGrJPWdAdzGTwaxhhbU6MMKdpYdPuWFjgchs9a69k6nxPUnJLv2

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