SP4: Cross-site Linked Section: Sub-pages have no title on destination site

I have two sites. The first one has 2 lang (FR and DE). The second only one (FR).

I created a basic section with two sub-pages on site 1 (in all lang - url key on each page) which is fully validated. I did a linked copy of this section on the second site (and another one on the first site in order to compare). The destination site is in no workflow.

The first duplication of the linked copies went fine. Then I added a new sub-page in my section that I validated (only a page in FR). There is an empty no title page on the second site. The linked copy on the first site performed ok and there is a title.