Primary monitor not honored for new files
Win 10 (1511), docked Surface Pro 4, two additional monitors.
Primary monitor set to one of the external monitors.
All files saved to the desktop in any application are moved by Fences to monitor 1 -- the Surface monitor -- instead of being left on the primary monitor (they briefly flash on the primary monitor but then are moved to monitor 1). Only disabling Fences changes this; no settings changes in Fences change this either.
Am I missing something or is this just a functionality oversight?