Transaction not yet indexed

AmBAU7BaaYYiWCqZpmhpGGYPdZZdcPH3qfwFv4skcJ9eqJ2eDoc248iwQaNB1wjfz1tK6vSCRm3ftxKhdvWep8Y

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