Hi, it was in  the Modern Maroczy Bind section 6. Not sure if anyone mentioned it before, but in the line where Black chooses to play Ne6 after b4 in the main line, which then followed Rc1 a5 b5, Nb4 (mentioned in the video ) seems like a blunder as White can just play Ne1 and threaten a3. If Bxc3 then Rxc3 Nxa2 Ra3, where Black is losing a piece. Again not sure if anyone mentioned it but if not i hope that this is useful. 

Ps:  Please Correct me if i am wrong :P