I have a closed Pneumatic Door with Water, Dirt, etc behind it.
Dupes still try to do Jobs that require them to pass through the Door.
This leads to Dupes just standing in front of the Door.
Since is just closed the Door recently the Jobs might have been assigned before the Door was closed.
Build a Door (e.g. Pneumatic Door) Set it to closed Create Jobs (Dig, Sweep etc) behind the Door Wait for Dupes to stand in front of the Door