Butt and Through walls

[robwhite]

I think I might be going over old ground. I have read a few thread on this 'Butting walls' or 'through wall' issue, but I cannot find an answer rectifying my walls that are not butting propery

On the attached drawing, I checked the through wall box, both for the start and end of the cavity walls. I have also made sure the single butting wall are not checked 'through wall' so they should 'butt', but the wall do not butt, but continue the cavity. (I think there are too many 'buts' in that sentence....but it does make sense...I think. Read it slowly).

Forget the sentence and look at the attachment.

In Cheif X4 can I stop the single walls when butting in to the cavity walls from protruing and closing the cavity.