Transaction not yet indexed

668K2MwH9wnRfKX67eWr3fUp4rxDPMMoWL5tmiYWidXmQfgsWKhjQUWU2qo4mNJgiV9KExFvoMHTDiCgfRqDv2gD

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