Please post your AC version and build (assume you have downloaded all of the lastest hotfixes)...
It appears that you have your 'opening line' for the wall set on the outside edge of the footing, rather than the face of the brick wall...
Cheers,
Karl
One of the forum moderators
AC 27 USA and earlier • macOS Ventura 13.6.9, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB