Transaction not yet indexed

YUUm4uyxqQkBiFBT2E87rqFbJH7V2gpEuA6n2xD3gqWYdpc97ZTRqwNeP9PUy2HeCbs8aa167qVKLSqDVyqBwuQ

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