Continuity mistake: When Indra Ganesh offers Joseph Green the briefcase with the Emergency Protocols, he's holding it with the handle in his right hand in wide shots, but with it in his left hand in close-ups of him. (00:12:36)
Continuity mistake: When Martha is walking up to the hospital just before the motorcycle gear-clad slab bumps into her, her right hand goes from by her side to holding her purse strap between shots. (00:02:15)
Continuity mistake: Rita has her right arm up in front of her while her husband is shouting at her. She lowers her arm, and in the next shot, she is holding it up again. (00:10:10)
The Day of the Doctor - S7-E16
Continuity mistake: When Clara asks Kate why her two assistants have entered the Black Archive, she rests her left arm on the sill of the window of the containment unit she's inside. In the next shot, when Clara slowly turns to look at "Kate", who's just revealed she's actually a Zygon imposter, her left arm is by her side. (00:39:55)
The Day of the Doctor - S7-E16
Continuity mistake: When the Doctors figure out how to disintegrate the door, when Eleven takes out his screwdriver to check the calculation and announces that it's complete, Ten's right hand, with which he's holding his screwdriver, goes from raised at roughly shoulder height to much lower between shots. (00:44:50)
The Day of the Doctor - S7-E16
Continuity mistake: When Osgood discovers Kate trussed up where the Zygons left her, when she pulls off the sheet covering her Kate's head is completely covered by a membrane-like mass. Moments later, after Osgood has begun working at Kate's hands to get her free, in the next shot with Kate's head in it her face is now uncovered. (00:46:15)
The Day of the Doctor - S7-E16
Continuity mistake: In the scene at the end in the Undergallery, when Ten walks up to the Gallifrey Falls painting, wondering what its actual title is, the door of his TARDIS, visible behind him, is open. In the next shot with the TARDISes visible, the door is shut. (01:10:55)
The Day of the Doctor - S7-E16
Continuity mistake: When the Eleventh Doctor takes off his fez, before throwing it into the time fissure, the position of his right hand on the hat changes between shots. (00:27:40)
Journey to the Centre of the TARDIS - S7-E12
Continuity mistake: In the storage room, when Clara takes a model of the TARDIS down from a shelf, how she's holding it changes between shots. (00:12:10)
Journey to the Centre of the TARDIS - S7-E12
Continuity mistake: When the Doctor begins to explain to Gregor that the TARDIS doesn't actually have a self-destruct, he places his right hand on Gregor's shoulder. In the next shot, his right arm is by his side and he isn't touching Gregor. (00:26:00)
Journey to the Centre of the TARDIS - S7-E12
Continuity mistake: When Gregor hands Tricky the patch from his jumpsuit, Tricky's hold on the patch changes. In addition, the patch is sagging in shots facing Tricky, but not in the close-up of it. (00:32:40)
Journey to the Centre of the TARDIS - S7-E12
Continuity mistake: Before they enter the damaged TARDIS, when the Doctor watches Gregor put down Bram, and then asks Tricky why he's using a blast suit and respirator despite being an android, his hands are clasped in front of his chest in close-ups, but down below his waist in wide shots. (00:09:15)
Continuity mistake: When the Doctor puts on a harness during the preparations to rescue Hila, a flap on the front keeps switching between being straight out and being folded behind the strap it's attached to. (00:29:25)
Continuity mistake: When Clara shakes the TARDIS' doors, demanding it let her in, her hands change position between shots. (00:36:25)
Continuity mistake: While Emma is explaining to Clara what an empathic psychic is, the Doctor grabs a bottle of milk from the table and takes a swig out of it, holding the bottle in his right hand, before jumping into the conversation to state that empaths are both extremely compassionate and extremely lonely. While he's saying this, his left hand goes from gesturing in a close-up to holding the milk bottle in a wide shot. (00:06:25)
Continuity mistake: When Emma tells Clara not to trust the Doctor, the position of her hands and fingers, holding her teacup, change between shots. (00:19:00)
The Bells of Saint John - S7-E8
Continuity mistake: While the Doctor and Clara are talking and realise that she now possesses extensive computing knowledge, in shots facing the Doctor he has his hands raised in various gestures or by his mouth, but his hands aren't visible in shots facing Clara. (00:23:13)
The Bells of Saint John - S7-E8
Continuity mistake: When the Doctor says "I'm an alien from outer space, I'm a thousand years old, and I can't fly a plane! Can you?", the sonic screwdriver jumps from his right hand to his left. (00:26:43)
The Bells of Saint John - S7-E8
Continuity mistake: When Clara takes the copy of Summer Falls away from Artie briefly, the position of her hand on the book changes between the initial shot and the close-up of the book's cover. (00:05:41)
The Bells of Saint John - S7-E8
Continuity mistake: When Clara asks the "girl" coming down the stairs if she's a friend of Angie's, and the "girl" replies in a monotone, in the shot facing Clara the girl-robot is seen nearly at the bottom of the steps, but in the next shot facing the "girl", she's suddenly higher up the stairs. (00:13:07)
Chosen answer: 1) When Stephen Moffat took over he ignored a lot of what had been developed before (there is not in-universe answer). 2) It would have killed Rose, so the Doctor absorbed the energy. His body regenerated before the energy could do a significant amount of damage that would prevent regeneration.