Reply To: Table of Contents – blank updates

I took a look at your file. That is really weird! It appears that there is something corrupt within the TOC style of the broken file. I tried exporting it as an IDML, and then reopening it, but that didn’t work. So then I decided to delete the TOC style in the broken document, and reimport the one from the working document, and it worked just fine. Give that a whirl and see how it works for you.