Transaction not yet indexed

Mef9sV8uTzS6kqCzaaubzWrLF2JpUkWEzwwXcYTqLoZvdawkGVST5GDKFM8bhK4jS4UAqb2N5KkizfSF8SL9SfQ

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