What happened?

1. Global context is Joomla 5.4.3 using Cassiopeia standard template installed from scratch
2. System > Global configuration > Articles | Category tab => Set Choose a Layout = "Blog"
3. Content > Categories => Create 2 categories like :

[Main category]
|- [sub category 1] => In "Option" tab, set Layout = "Use Global"

Or

[Main category]
|- [sub category 1] => In "Option" tab, set Layout = "Blog"

4. Content > Articles => Create 1 article and publish it in [Main category]
5. Menu > Main menu => Create a menu like:

[Menu 1]
- Main tab settings => Menu Item Type = "Category blog", chosen category is [Main category], Parent Item = "No parent"
- Category tab settings => Subcategory Levels = "Use Global (1)" or any other value except "None"; Empty Categories = "Show"

6. Go to front page and to [Menu 1] :

• Article published in [Main category] is display in blog type layout => That's OK
• Sub category [sub category 1] is displayed in list type layout => That's wrong !

Version

5.4

Expected result

Sub category [sub category 1] should be displayed in a blog type layout

Actual result

Sub category [sub category 1] is displayed in a list type layout regardless of the layout chosen in the category options and/or in System > Global configuration > Articles | Category tab => "Choose a Layout"

System Information

No response

Additional Comments

We tried to create overrides of files in ‎/templates/cassiopeia/html/com_content/category/ with no suucess. It seems that "category_layout" var can't be used.