Transaction not yet indexed

668DMxCavceZ52DPjmoyBZHAHHH4jRBdd3FtDMRcJvPs3upFU5JWfUfdF3mGpEcDGTXShPWW7nHC3CUhCRhUqVo1

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