Transaction not yet indexed

5C668qvEAqNF8C57vA6MJ5g3py6L6rCjXGh1t1iUX8nuAx2XjPBD4DQ2mcKD21xR6TfpG9xHTPqU5K4evVQac6gK

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