Sol sees the mark on this twin's forehead and is confused, because he knows that mark is only on Mae's body* but his instincts---or the Force?---told him that this twin was Osha. What the hell is going on?!!! Maybe I'm overthinking things and Sol is just a really terrible Jedi. But maybe not.
*The episode makes sure to show Sol discussing the forehead mark with Indara, pointing out that Mae has one but Osha doesn't. So he's well aware.


















