I think the package column is also showing C8, although I'm not familiar with the layout. Here's an example of what I currently see:

            Package   |            CPU 0
  Powered On  0.0%    | POLL        0.0%    0.0 ms
  C1E-SKL     1.3%    | C1E-SKL     0.2%    7.1 ms
                      |
  C3-SKL      0.0%    | C3-SKL      0.0%    0.2 ms
  RC6pp       0.0%    | C6-SKL      0.0%    0.0 ms
  C7s-SKL     0.0%    | C7s-SKL     0.0%    0.0 ms
  C8-SKL     64.5%    | C8-SKL     99.6%    9.5 ms
                      |            CPU 1
                      | POLL        0.0%    0.0 ms
                      | C1E-SKL     0.0%    0.0 ms
                      |
                      | C3-SKL      0.0%    0.0 ms
                      | C6-SKL      0.0%    0.6 ms
                      | C7s-SKL     0.0%    0.0 ms
                      | C8-SKL    100.0%   84.8 ms
                      | ...

What would I see if it were properly using C8?