I can't seem to get rid of warning notifications shown on my pip boy about settlements. Usually concerning defence. If I return to fix any other problem(water,beds etc) then it's shown in red,once I fix it it returns to green and the notification disappears. But not with defence,I fix it and it goes green or there is no problem at all apon returning to the settlement,but there is still a warning notification by the defence section on my pip boy.Ive tried waiting to see if there is a delay on repairing the defence and when the notification disappears..but nothing. At the moment it seems only to be with Abernathy farm,Oberland station and another.No matter what I do the warning notification is still there.All the numbers are green,settlers happy,everything is repaired. Please help its bugging the hell out if me!