No effect, go out of screen

if i put it in other position, it's also working !
Do you have an idea of why it's not working in nav position ?

Thanks, so, it's a miscoding in Favourite template. Thanks for all.

yes this is because of the mobile navigation, it loads the same module position 2 times
you can try to disable the mobile hamburger icon/navigation in the template if you find an option for that