Transaction not yet indexed

Ng9JSfreahXLPCgXwfVJAACf9nEUnWa66VeRxMSU1oHVq7fj1qPYGW7ZtS1Kgx5EV7JagnZG2UzrgzKZLSZ3nm8

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