@loftar:
many moons ago when you pushed the placegrid command through with its relevant patch you said :placegrid 11 should be used to pixel-perfectly align bounding boxes.
i've noticed however that sometimes the boxes won't align properly on certain tiles. for instance, placing 5 straw baskets in a row where in such a way that the bounding boxes meet will usually result in at least one spot where i can't place them against each other. it usually gives me one of the errors such as "this area is occupied" or sometimes just the "can't do that" soundbyte. unsure if this is a bug really, or an issue you're aware of but lately its been driving me crazy.