Transaction not yet indexed

1236YvbMJCyoUD7aaDa9BQ7EwBupe87rTWLueddAaxpxsAAym3Z8cFc3uF8iheJLuve1U6bB3ngSdYAtLUo9YuBX

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