John,
Thanks for your response.
Basically, I have a date-picker custom field that should update the post title and post slug on update. It was working fine but the formatting was off–always displaying the date as YYYYMMDD.
I later got the formatting to work, but it created another problem—the date isn’t being saved the first time around and therefore the need to update twice.
This issue is beyond me. I hope that clarifies.