Recipe:
Create a new file.
Create a text frame on a document page.
Use Text > Table of Contents > Insert Table of Contents
Go to the Text Styles studio panel
Double-click on TOC 1: Entry or TOC 1: Number to edit that style.
Result: Publisher crashes. This is repeatable.
Note: It does not matter if you actually have any entries in the TOC or not. If you do have entries, then double-clicking on, e.g. TOC 1: Heading 1 will also cause the crash.
This does not happen in 1.7.3.481.
I think that at least one crash report was submitted automatically (email address same as for this forum account) as I had to allow crashpadhandler.exe to get through my firewall. But if not, I can upload one.