A family of Microsoft word processing software products for creating web, email, and print documents.
The problem is that the entries are impossible to select because an automatic TOC has been used. This is what it looks like when you try to select an entry:
There is something just very squirrely about this TOC. If I delete the TOC content control and insert a bare TOC, when I try to modify TOC 1, it definitely shows shading, but the Shading dialog doesn't reflect this:
I finally succeeded, however, in doing what I had attempted to do once before. I deleted the TOC 1 style, which forced Word to regenerate it from factory default:
The table can then be updated and the shading is gone.