Automated calendar rules are set up between 2 listings so that when a reservation is made on listing A, those dates will automatically be blocked on listing B as well. These blocked dates on listing B are not a reservation, they just represent the reservation that was made on listing A.
If one of your listings seems to have reservations with payouts during a specific month, but the Owners Portal is showing $0 that month, the listing's calendar may have been blocked by automated calendar rules, not actual reservations.
The income on dates blocked by automated calendar rules only applies to the listing where the reservation was made, not the listing that was blocked by the rule.