This is by design if you install and activate the following plugin should do what you’re after
Thank You for reply. It is interesting, it is bug of forum? Why defaualt function of bbpress do not working without this plugin?
This plugin is independent from default function(link in topic https://prnt.sc/i1vufg). I want controll this function and show lead topic in one branch(topic), but hide at another. But this plugin can not do this.
If you want that functionality you will need to modify the plugin I linked to, you could set it so that it is only enabled on specific forums, or specific topics, that’s up to you.
It is not a bug in bbPress, it is by design, just as you can install plugins for WordPress, in this case, bbPress, you can install and customise bbPress by further installing bbPress plugins, it allows for the flexibility of each user to customise bbPress to their personal needs without imposing on others who do not want that functionality.