Transaction not yet indexed

rk15fttcDkHXcM2kUb78PXTYBAjjfRNWCT42snC8h36BqdHztfhdkUAMzWFXQh2h89f7jR4JdBWVxoV4GNaPEs7

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