Is there some kind of glitch that makes some of the CGs black and white? They looked incomplete, more like rough drafts/sketches. Is that a glitch or will the finished product come in the upcoming updates? The CGs that seem glitched are from Dean's route, Tyson's route, and one from Orlando's route. Hopefully this will be fixed.
There was a vote on Patreon about this. Essentially people wanted sketchy/more CGs and faster plot development rather than complete CGs when needed with possible delays given the time needed to render them out.
Eventually they'll all be done in full colour. If you view it in the game once, it unlocks in the gallery and when the assets get swapped out, you'll see them there.