Transaction not yet indexed

1DffXNpJ6a29UQnvNQH2KT4yWjyULqNpEEeVsim3thZZ19zdjWv2NoQ13iobySKGRmNXkx1eJ3hYy3ZZoPQZVZc

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