Transaction not yet indexed

HKu3rsKUFkvTfMoM29u2wFZ1rHrUaA8nsAjpZ3r3R6DJ2vzpzuNReTWM4WFFGb6riHTyGwjCEqAFBsM64MJcRiM

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