- Not using mirror.

- Using the latest client.

- Probably caused by the toggle interface overhaul from a while back.

 

openHouseOptions() does nothing.

setHouseBuildingMode(bool) works but only when  is opened (something openHouseOptions does not do anymore).

 

#Settings.isHouseBuildingModeOn() works though.

 

What I tested against:

 if(!ctx.getSettings().isHouseBuildingModeOn()) {
            ctx.getSettings().openHouseOptions(); // Does not open the house options
            ctx.getSettings().setHouseBuildingMode(true); // Only works when manually opening house options context (or via a custom method)
  }

My fix:

private final Filter<RS2Widget> houseOptionTabFilter = w -> w != null && w.isVisible() && w.getMessage().equals("House Options");

private final Filter<RS2Widget> houseOptionButtonFilter = w -> w != null && w.isVisible() && w.getInteractActions() != null && Arrays.asList(w.getInteractActions()).contains("View House Options");

    private boolean isHouseOptionsOpen(){
        List<RS2Widget> results = ctx.getWidgets().filter(houseOptionTabFilter);
        return results != null && !results.isEmpty();
    }

    private boolean openHouseOptions(){
        if(isHouseOptionsOpen()) return true;
        if(!ctx.getTabs().getOpen().equals(Tab.SETTINGS)) {
            ctx.getTabs().open(Tab.SETTINGS);
        }
        List<RS2Widget> results = ctx.getWidgets().filter(houseOptionButtonFilter);
        if(results != null && !results.isEmpty()) {
            results.get(0).interact("View House Options");
        }
        return isHouseOptionsOpen();
    }

     if(!ctx.getSettings().isHouseBuildingModeOn()) {
            if(openHouseOptions()) {
                ctx.getSettings().setHouseBuildingMode(true);
            }
        }

I didn't use any fancy caching but the perhaps the filters will help you fix it more quickly peacerino ^^

Settings API is pretty jacked up at the moment. When I look at the API again (should be soon), it's already in my priority list. 

This was updated in 2.3.113. Thank you for reporting.