I have completed the task where
I can press R1, so he either hides behind the chair or stands against the glass. I cannot 'shimmy' past the plant or the lamp, the only thing I can do is get from the tiny space between the lamp and the chair and the space between the chair and the lamp. It wont let me use the weapon wheel as i'm in my own house, and for some reason, pressing square to jump, wont work either.
I have gone back to the last mission, but it comes back to him behind the chair. I have switched everything off and on, still behind the chair.
I do think I am well and truly stuck. Anyone have any ideas?