When is csrf token updated in yii2?

Question

Yii

Hello. There is a problem with the site: periodically users "catch" the 400 error:

[error][yii\web\HttpException:400] yii\web\BadRequestHttpException: Не удалось проверить переданные данные.

At the same time, in the error log, I see that the csrf token was passed fresh.
The error does not always happen and not for everyone.
Tell me, plz, in which direction to read?