What’s happened is, is that Hatshepsut died of bone cancer (carcinogenic face cream kids!), and seems to have been buried in KV60. This tomb is actually the tomb of her Wet Nurse, whose body was identified immediately and then there was another ‘unidentified female’ in the tomb. In 2007 the other woman was identified because she was missing a molar, and everyone thought ‘hang on a hot second, don’t we have a tooth in a box that we definitely know is Hatshepsut’s?!’ So they tested the DB320 “canopic box” tooth and the teeth from this unidentified female, and it turns out they’re a DNA match! We found Hatshepsut!
When this was announced, the Cairo museum displayed both Hatshepsut (the first image) and her wet nurse (the image everyone thinks is Hatshepsut) together and the media got them mixed up when labelling photographs, which has led to years and years worth of confusion by the general public.
TL;DR: The media mixed up the labels on the mummies and the photo of the wet nurse has been mistakenly labelled as Hatshepsut every since!