Why do the Doctor and Clara not recognise Missy in ‘Dark Water’? In the series 8 episode ‘Dark Water’, when the Doctor and Clara meet Missy at the 3W mausoleum, why does the Doctor not sense that Missy is a Time Lady? Like the 10th Doctor did with the Master in series 3 and 4. 
Also how come Clara doesn’t recognise Missy as “the woman from the shop” who gave her the Doctor’s phone number in the first place?
Probably something I’ve just missed but thanks in advance!