have an issue with using the manual override in the negative, when the negative amount goes into a window or door the window or door blanks out with a surface.
example would be if i want to bring up my external cladding -800 and it then fills in any window or door. works fine when there is not an opening.
This issue only appear because the wall height is lower than the top of the window or door and can’t cut the opening. We are looking at fixing this in the not too distant future but it hasn’t been confirmed yet on when this will be.
What I would recommend to do is to manually edit the external skin (cladding in this case) down the required distance.
Would you be able to please let me know if this works for you?