Transaction not yet indexed

Sm6QJkuDuZ2m8vPYi9Z7GFPhVtCpLBm6ebUcwpswU1VkZtpcBMdEcaxCdV4ynpbXP1miq5Sm1XBBuYkwwgWUML2

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