Transaction not yet indexed

1mUKKEjR23b5UktWsmyG9LTPfrcaQw8y8hp9r4qZLueTTfhTJaq7NJXJGvuZWPa6TsjgbXeaKASzQXttFV2xy16

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