How do I make the bread crumb work properly in the Indigo skin for HTML5 on unstructured FM2020?

[StudioSm]

I am working on a new template, and want to use the Indigo skin for HTML5 with unstructured FrameMaker 2020. But I can't make the breadcrumb pick up the correct topics names. It stays put at Chapter 1 even if I assign each Chapter Name paragraph as a topic when publishing.

Is there a way to fix it?

[StudioSm · Accepted solution]

Figured it out! In case anyone wants to know... The breadcrumb feature is hooked up on paratext. So switching from a paragraph that merely contained an autonumber to a paragraph that contained actual text was what worked. A little odd and not what I would have preferred, but better than nothing.

[Bob_Niland]

What character did you choose?

Does the hack work with arbitrary whitespace characters like \u200b ?
U+200B ZERO WIDTH SPACE

And then perhaps stewardship suggests using a Variable to insert it, as it's otherwise hard to notice, find or select:
Name: Breadcrumb
Def: \u200b