I'm getting a weird bug that started somewhere around the 'track down the pills / reopen the cold case' act of the game.

One part to the bug is that the 'space to search for evidence' stops working for a while, but then after progressing in a case etc it seems to usually come back
And then there's a game-breaking bug where concurrently with the 'space to search for evidence' going away, the prompts to 'press F to show a character evidence' also completely go away (no visual indicators, and nothing happens when pressing F near a character anymore)

It's very hard to tell what causes the game to do this. After I quit the game for a day and went back in it seemed like my save had suddenly corrupted and was doing this. I started a new game and that time it seemed to start during the pill quest after I talked to the engineer Tijun(sp?) to show him certain medical records - his portrait changed to his previous portrait with a hospital gown and wounds from the previous act and then the game started doing this immediately afterwards