I have a problem, I think that it might be permalinks related, but I'm unsure. All of my sub-pages (child pages, secondary pages) return a 404 error when using the Posts permalinks structure. They work OK when I use the default permalinks structure, they also work OK when they are move out from "under" the parent pages and are made a "main page."
The site is on a linux server (GoDaddy), so I'm not sure if it's related to a similar issue with the IIS servers. I also don't think that it is just theme related, as I get similar errors with a default theme.I'm not using any plugins that affect permalinks.
Some of the main pages (created after the update) had a similar issue, but it was fixed by switching to the default permalinks, and then switching back to the Posts permalinks.
Just a note: I can't seem to recreate this issue on another server.
Is this a little bug in the new update, or is it just me? Any ideas on how to fix this?