Custom theme for category

Hello,

In a recent post, you explained to me how give a custom theme for a category. And until recently it's working fine. But with the very last update this functionnality stop to work for me.

First I've think I've broke the system with my manipulations. So, as I'm in testing process, I've restored a backup of five days ago (with version 5.30.0).

I have :
- copy the entire wireframe directory in my template/html/com_easyblog/themes
- put the Greenie theme as default
- create a new category and give it Wireframe as custom theme
- create two menu items : one to uncategorized category and one to my new category
- unpublish the default menu item for EasyBlog (post frontpage)

=> in 5.30.0 it's working perfectly. I see the theme changing as I select default or new category menu.

After that I have upgraded Joomla : no changes;
Then I have upgraded EasyBlog to the last version (5.30.1) : the fonctionnality stop working, I have the Greenie theme in all the menu item.

If you could help me on this subject...

Merry Christmas,
Christophe