Hello!
I really need to understand how to fix all this.
The issue is the same as discussed here and on other topics: https://gvectors.com/forum/how-to-and-troubleshooting/wpdiscuz-not-showing-on-learnpress-lessons/#post-17396

So the post object is not being loaded correctly, instead of the lessons, there is the Course object called, thus the wpDiscuz form is not being loaded.

But if I will disable wpDiscuz Plugin and will use native WordPress comments it is working normally and there is no issue.

I received this from LearnPress support, so native comments working well and issue on wpDiscuz code.

I really want to understand how to solve it, I already purchased addons and I need make it work.