Transaction not yet indexed

ummEKKUcMM9eNPniBH1PueCrNBtcuqTbU1fD4i9hwYLFEPAdgRU6v6ePiwj1q6tPb74q3pNqXXUZRktfkhbhYRR

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