Ditamap to book with fm : topicref in topicref

[Schiaf]

Hello
On FM 15 (2019)
I have a ditamap that contain topicref in an other topicref.

something like that chapter > topicref1 > topicref2
when I save it in book with FM component, only the last topic is converted in fm. The topicref in the middle dissapears. How can i fix that?

[Amitojsingh]

Can you please mail us a sample to check or try in 2020 summer release once please.

Thanks

Amitoj Singh

E: amisingh@adobe.com