hello jan!,

I am really sorry for the delay of this reply as it is a weekend for us here.
I have help you solved it, the reason why you hitting this is because you didn't set the correct routing type from the showcase module, i have help you change to use menu item, so that Joomla will know this module is link to this blog menu item and show correctly the SEF URL.
Please have a check.

Thank you Arlex its working now,
one question please, on my website when you click on blog and after click on the sub-menu item "mots clés" for example the menu Blog is unactivated, is the any way to link the two and get the main menu item activated ? i dont know if its clear for you please take a tour on my website.

hello jan!,

You're welcome.
To be honestly, I'm not get your meaning in previous thread
If I'm not wrong you're pointing to the "tag" menu item layout (check my screenshot below), when you disable this menu item, then what are you want to achieve? Please advise.

Hello jan! ,

I got what your meaning now.
Unfortunately that was not possible because I noticed you have created the blog menu item separately, if you put your "mots clés" menu item under blog menu item (check my first screenshot below) then it will link to that menu item.

If you create separately, Joomla will try to know this is the only 1 page, no link another menu item.
By the way, may i know how the module let the system know that is link to blog menu item? (screenshot2)

Hello and thank you,
it work this way if i create them under the main menu, but they will not be visible at the location where are now (under the main menu) !