Transaction not yet indexed

1SDkFBtXrw5fyTDtDx4wkspKcnaLHvA7RKBYab1xPGPemXLFKXoegJJHkADwukcaVxs8L7JyDwNVqGkv9ynYjE6

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