The backend clamps perpage to MAX_PAGE_SIZE (100), so location selectors that requested a large page received only the first page and still got a 200. Late-alphabet locations (past ~C5W) simply went missing from every module's dropdown, and no error surfaced.
Add locationsApi.listAll, which pages through the full set via fetchAllPages, matching the established machines/printers pattern, and switch every location selector consumer to it.
