Transaction not yet indexed

15HM66WPQnRqq2ftU6T9e2nijEHWB49aoh61F9oDAKt2seQH74qyiJdM3jwxTYzMyaMAK7Z9XpKkeTAvWdANE1Z

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