V15 Bug: eVars not available for drilldown from Pages report unless Pages is part of >=1 correlation

If Pages and Site Section are not part of at least one correlation then the drill-down icon does not show up, so I cannot drill down to eVars/Custom Conversions.

Once I added a 2-item correlation between Pages and Site Section, the icon appeared on both reports and I can now drill to them. Hopefully this is a bug and isn't as designed.

Thanks!