Transaction not yet indexed

2R51wVY5rh6HBjqwVFv4PdpiGn3wnxcSqLZDqfsmWamKBuq3ovQUBtWtMsZVMrbJ7GRNzZPVPvFRpLU9ZdkBgLk2

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