Transaction not yet indexed

MEztxefkoMH8cHaQEC9jJTp19fX8YQcsPCbdAU1eQ7Jg1Ri7pgVmG44dN8ZKKkvUxXLfGLauRKBF8joifBu21V6

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