I can confirm this bug. Furthermore, it’s not only that the slider does not work at all, it also overwrites the settings from a 0.7.4 save. So with this bug the feature is not patch compatible right now. Players should revisit their hunter lodges after the fix has been applied. I suggest adding this hint to the next patch notes next to the bug fix info.
For work camps my settings have been loaded in correctly from 0.7.4.