I have purchased Curse of Strahd, I intend to use legacy dynamic lighting. A note suggested since 'has sight' is turned on for all the NPCs it is advisable to turn it off for all of them to reduce computation time. I read the relevant (no longer maintained) Wiki and have tried to follow directions and haven't succeeded. Since the 'has sight' check box is empty in the game settings, it doesn't recognize leaving it empty as a change. When I change other things (enable dynamic lighting, enforce line of sight, etc.) and save changes, I get a popup asking to reload site and warning my changes may not be saved. I've responded in different ways and was able to get a change that put dex at end of initiative. Put I have not managed to turn off 'has sight.' Can someone explain what I need to do and what I'm doing wrong?