How to search for skipped operations in a conditional flow
The operations in status X (Suppressed by condition) are skipped in the current plan, meaning that they are not run, but, like NOPED operations, their normal successors can run if free from other constraints. To list skipped operations you can filter on status X in the operation list filter panel.
When you define an application you can decide to allow the X status to propagate through a branch using conditional dependencies as described in How to propagate the X status in a branch.