I'm getting a major glitch at the paint mixing puzzle. If I click on the "Go Back" button (the one on the bottom) from that screen it restarts the entire game from the beginning! Fortunately the "Back" option on the top bar still functions and takes me back to the paint and then to the wider view of Fuco's office, so I haven't lost and progress. It's just weird.
(On a more general note I would just like to express how much I hate hate hhhaaaaaated the paint mixing puzzle. It's finicky and frustrating and unlike any other part of the game so far. I just wanted to spend more time with Fuco, but instead of posing naked for the hot sensitive orc artist I had to pull out paper and a pen and do math while playing porn game)