Glad you noticed and mentioned these off-angle walls, since they've been driving me crazy, correcting each one. Somewhere, there must be a setting to allow me to draw (snap?) straight walls, gable lines, etc., but I've not yet found it. Is this a single setting that I need to look for? Still reading up and watching roof tutorials.
And I mis-spoke earlier . . . the large gable is NOT on the interior wall, but is over the porch beam, as per the attached roof detail.