I was about to click on the mission map but somehow accidentally opened the inventory at the same time as opening the mission map. The inventory screen overlaid the mission map, hiding my next objective markers. I could not close the inventory and I could not close the map. I would suggest adding an option/button to close the mission map or map esc to close active option window. I had to close the game and relaunch. Of course, all the inventory management I had done, probably took five minutes of careful planning, was lost. I would also like to see inventory management saved immediately. I list this because it was a side effect of the bug.