Transaction not yet indexed

NU6cb5U7uDxDsbcuFj1NBmKQeNc7eSeAk3XUDyEiZRGKcmDEoA9aU8NxqPPhvk9iKKiqqRYUxuomRC1Wrf2vm9t

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