Transaction not yet indexed

Vu91ULfc1QRqgFdAGqy4WDB8UTZMFhpWaUG9J7gTnR5GkYMW5KZaMkLv6XX6vUEXNeVLKzYLCAD6RcPFZFY7tQ6

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