In a switch stack, only the master is showed in devices, all other stack members gets listed as linecards/modules...
Suggestion screenshot attached.
We've documented this as a current limitation for the Active Advisor scanner:
Other users of Active Advisor have also requested this feature in the past, and we have added it to our internal roadmap, although we haven't yet prioritized it over other features currently under development. Thanks for taking the time to voice support for this feature, our product managers use this feedback from the community in order to help us better prioritize the order of features we work on.