Why is category.php not included in wordpress?

Question

CMS

I'm making a pretty simple wordpress template.
It was necessary to add a separate template for entries. It seemed like a no-brainer! But no!
I create a category.php file, but the index.php template is still connected to the category page.
Tried in different ways:
category.php, category-job.php, category-2.php, archive.php
But still the entry is displayed with the index.php template.
I did not find anything worthwhile on the Internet. help me please

Answer 1

The same problem, the category.php template does not want to connect in any way, although the rest are normally connected
. I found what the problem was, "permalinks" were by default "Day and name". After changing to "post name" everything worked

Answer 2

I'm not sure, but the file that is connected (category.php) requires a multiline comment with some information...
PS
clubwp.ru/xz-articles/sozdaem-shablon-dlja-otdelny...
"The most important thing in the new template at the beginning of the file, insert the following code"

<?php
  /*
    TemplateNamePosts: clubwp
  */
?>