Just for the sake of completeness, I've extracted, in interview order, all the reports of the crying incident from K and GMcC statements:
G : 4/7/2007
Between the 28th April, the day they arrived and the time the disappearance was discovered, he says that nothing unusual happened, only referring to an episode on the morning of the 3rd May, when Madeleine asked the witness the reason why they had not gone to her room when the twins were crying. As he did not hear anything, the witness did not go to the bedroom, however he finds his daughter's comment to be strange, maybe because it was the first time that she had made it.
K : 4/7/2007
She reports only one episode where, on the morning of Thursday May 3rd, Madeleine asked the interviewee why she had not come to look in the bedroom when the twins were crying. The interviewee states that she had heard nothing and had therefore not gone into the bedroom. She thought her daughter's comment strange because it was the first time she had talked about it.
G 10/7/2007
The day MADELEINE disappeared, Thursday, 3 May 2007, they all woke up at the same time between 07H30 and 08H00. While they were taking breakfast MADELEINE addressed the mother and asked her ?why didn't you come last night when S*** and I were crying??. That he thought this comment very strange given that MADELEINE had never had this kind of talk [had never spoken like this] and, the night before, they had maintained the same system of checking on the children, not having detected anything abnormal. When he questioned her about the comment, she left [withdrew herself] without any explanation.
K : 6/9/2007
Regarding the fact that Madeleine on the next morning, Thursday, during breakfast said to both of them that she had been crying and that nobody had come to her room, she presumes that this crying must have been before she and Gerry returned to the apartment.
G : 7/9/2007
No mention that I can find.