Transaction not yet indexed

1234aU6xvbcsSuDeH1R3d7YF5dotZSXrNXYaKzMZ91QHLvcK5Kgg6yzSAfo6wnmnoC8C6CmGR4WuS1wEmjTS4dF1

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