Is the Scheduler Working?
Not sure why but the internal scheduler service that WordPress uses wasn’t working. No wonder why scheduled posts didn’t post accordingly. Also, all kinds of trackbacks and other links weren’t updated.
As a starting point, I disabled a bunch of WP plugins. Doing so appears to have cleared the backlog of scheduled tasks. Now to start re-evaluating the plugins to really see if I need them. Then activate them one by one to see if the scheduler problem reappears.
More testing to do…