meta base not working on client side

[francescovenica]

Hello,

I'm using express with nextjs, the express app has these routes:
/:lang/yyy
/:lang/xxx
/:lang/xxx/xxx.
/:lang/xxx/xxx/xxx.

All my pages has the meta base with this url: http://localhost:3000/${lang}/ while all the links in the pages are <Link href="my-page" />.

If I'm in this page:
http://localhost:3000/en/xxx

and I click a link like <a href="yyy"></a> I navigate to the right page http://localhost:3000/en/yyy, but if I'm in this page:
http://localhost:3000/en/xxx/xxx

and I click a link like <a href="yyy"></a> instead of navigate to the right page http://localhost:3000/en/yyy I'll land in this page http://localhost:3000/en/xxx/yyy

When I hover the link I can see the right url, indeed if I open the link in a new page is working fine.

I'm doing something wrong?

many thanks