Problem: You created a fileld region in a floor plan view but later on in the process you cannot select the region. You see the pattern and when you turn "detail items" on and off the region turns on and off. For some reason you cannot select the damn region.
Solution: Check your Visibility/Graphics settings ("VV". Under the "Line" category see if the line type you drew as the boundary for the filled region (eg. "
Just an FYI.