Vegas. Hogs frequently go to Vegas this time of year.
As noted, this is the time of year when the mast starts really hitting the ground. I tend to have corn pile up under my feeders during this period and often lose a lot of my hogs (often all of them) and many of my deer. Or, I get pictures of the hogs or deer on my game cameras, but they aren't under the feeders. If I am watching the feeders, I will often see them just pass through the area. Maybe they stop for a quick nibble (literally one or two sample bites of corn) or maybe they just casually walk through the feeder area on their way to somewhere else.