I had the same problem while working with WireFrame View. I just disabled WireFrame View (F8) and was immediately able to select outer cylinder (primitive) and not inner one (Negative Primitive). I know this is an old question but I just stumbled on this problem that sometimes happens. Hope it helps.
I had the same problem while working with WireFrame View. I just disabled WireFrame View (F8) and was immediately able to select outer cylinder (primitive) and not inner one (Negative Primitive). I know this is an old question but I just stumbled on this problem that sometimes happens. Hope it helps.
