Synchronize TOC with displayed topic

Hello,

I am using Robohelp 9 to generate a CHM file and I am trying to synchronize the TOC with the topic displayed. For clarification: when I click a link in the contents of topic A, referencing topic B, I would like topic B to be highlighted in the TOC tree. However, topic A is highlighted even though it is no longer being displayed in the topic pane.

In other words, I am after implementing the “Synchronize Table of Contents” feature from webHelp in my chm. I ticked “always show selection” in the advanced settings but I still get the same behavior.

Thanks!