In reply to davidct:
Coverage is computed taking into account each coverpoint in the covergroup so you are just seen the contribution of covering enable 0, 1 if you don’t want this you need to add option.weight = 0 to the coverpoints you don’t care about.
Section 19.7 Specifying coverage options of the 2017 LRM may help you to understand further, also section 19.11 Coverage computation