When I connect a second display, InkScape windows aren't visible on either the primary or secondary display on any desktop. When I enter & leave Mission Control, the InkScape windows fly off to the left towards the second display. Showing all windows (for XQuartz, as InkScape doesn't manage its windows) shows the window as belonging on the primary display (assigning it to the 2ary display doesn't make it accessible). When the second display isn't connected, the windows are accessible on the primary display. How can I access the InkScape windows with two displays?
Assigning windows to desktops on either display (2ary click on app (XQuartz) in dock → Options → [Assign to] Desktop on Display x), or to all desktops (2ary click on app (XQuartz) in dock → Options → [Assign to] All Desktops) has no affect on window accessibility.
"Displays Have Separate Spaces" is set in Mission Control preferences.
OS: 10.12.6 Sierra