Transaction not yet indexed

Dd6AuLkkNn5moTDPyb92PCJY4cUBmmfCCrmX7Y1gbL5PTwFTZMMVu5DprbFAaChKzREiLyhf8u2NfRh9Mkw4SDU

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