walls not completing automatically

[AaronS71188]

Any idea what can be causing the walls to not complete automatically here, or suggestion on how to fill? 

[Ridge_Runner]

Without a plan it is hard to tell. Check if the circled roof edge extends into the siding layer of that wall. Or, open the offending wall (assuming the upper wall) and on the roof tab check "roof cuts wall at bottom." The last one may not work as it looks like it is the lower wall causing the problem. If those don't work, attach the plan; even a stripped-down version will work.