In yii1 $this->render redirects to the main page. Where to dig?

Question

Yii

With echo everything is ok:

public function actionForm()
    {
        echo "пипец"
    }

outputs "kick",
and if render:

public function actionForm()
    {
        $this->render('form');
    }

redirects to the main page
Where to dig. The site was not made by me, probably somewhere the author redefined something. Where to dig?

Answer 1

I found the problem myself and everything turned out to be trite in the layout main, they are loaded through renderpartial files, and they are in a folder from another controller, so he didn’t find them

Answer 2

First, see if the code before $this->render is executed;
Then try to localize the location of the redirect,
I usually use exit; in code. Find a place, go inside the function.

Answer 3

Redirects or renders main?