Shouldn't Anakin have known??
In ROTJ I remmeber when vader was on the death star he could feel the presence of Obi Wan, in ROTS he didn't know Obi Wan was on Padme's ship until he saw Obi Wan. I'm just wondering shouldn't he have been able to feel Obi Wans presence when he came to Mustafaar on Padme's ship?