Steps to reproduce the issue

If you have 100's of Articles Tagged with the same Tag, like "Year 2021" and you want to see them, with 10 Articles per Page.

The First Page displays Correctly.

The Second Page returns 404 not found.

The First Page is linked like this:
/index.php/en/component/tags/tag/year-2021

The second page like this:
/index.php/en/component/tags/year-2021?Itemid=237&start=5

With "/tag" missing. => result 404.

Expected result

"/tag" is included.

Actual result

"/tag" is missing.

System information (as much as possible)

J 4.0.2 upgrade from 3.10.1

Additional comments

This works correctly on J 3.10.1