- All my categories turn up 404's after 1.2.4 update.
- I use categories as menu items and when clicked they turn up 404's.
- In my site map (not xml) all the categories are listed. When click they respond 404.
- I use Post Tags and Categories for Pages Plugin-adds the stock Categories and Post Tags to your Pages
I re-saved my permalinks, turned off force rewrite...tried a couple of other options, without luck. Had to Deactivate.