Relationship proxy creating file name as link text

[C_Baca]

I am inheriting a large project that makes use of relationship proxies to create Related Topics at the foot of topics. When I run the HTML5 target, the links render correctly. Here's a made up example:
Related topics
All about our products

This is the kind of link you expect, with topic title as link text.

But when I create a new clean XHTML target, the links render differently. The link text is populated with file names instead of titles, for example:
Related topics
product-list-2019

So where is the setting that Flare uses to render the link text for relationship proxies? It is configured correctly somehow for HTML5 but in a new clean XHTML target, the default renders link text as file name.

[C_Baca]

Have got a response from Madcap support. It turns out this is a bug report so it's submitted now. I have found a workaround. And that is to create and produce to a new HTML5 target. This creates output that contains hard coded links correctly formatted. Then create a new project that imports this product. Last create and publish via a new clean XHTML target and SF destination from the new project.