Maybe, you could try this: Delete the save game from the console, start a new game from chapter 3 and be sure to grab all 10 pictures again. No guarantee of success. Do you think it's worth a try?
Very strange, it never happened to me. All trophies appear seconds after the "trigger" to catch them. Did something happen during the end of the chapter such as a power failure or the console restart? If not, bad luck my friend