Getting links URLs for categories with custom layouts using JRoute

[Elvis]

I stumbled upon strange behavior when trying to generate URLs for com_content categories and their children.

I have custom layouts for categories and all content structure is build with menus, so itemid-s are there.

But when I try to generate URLs (links) for example inside module using JRoute::_(ContentHelperRoute::getCategoryRoute) and getChildren(), layout parameter is missing in URL.

So instead of 

index.php?option=com_content&view=category&layout=uikit2:catalog&id=108&Itemid=825

I get

index.php?option=com_content&view=category&id=108&Itemid=825

I've found a post on stackoverlow saying that it isn't possible to generate categories and categories children URLs with custom layouts and JRoute, is it true?