https://github.com/barisusakli/nodebb-plugin-topic-noindex This is a plugin that does it for topics.
There is no built in way to do it in core. So to do it for categories you would have to fork and extend the above plugin.
Hi. I`d try everything - mark all read and chose only this topic read. restarting forum, but still one unread topic remain( what it could be? thanks in advise.
Any word count or server side? Have you tried clearing cache and restarting nodebb?
Yeap - restarting and clear browser cache. "Any word count or server side?" - what do you mean - run in dev mode and look - what it told to me? And this topic in /unread doesn`t have blue highlight on link - it is inactive black (
Solution for me was - click "Mark unread" button inside topic - and then in /unread after clicking on issue topic everything was great) but I can not understand how it can be and why it was happened(