if we open urls like

https://(...)/eng_admin/url/view/280url

we get fatal errors...

Fatal error: Call to a member function attribute() on a non-object in
/var/www/(...)/kernel/classes/datatypes/ezurl/ezurlobjectlink.php on line
140
Fatal error: eZ Publish did not finish its request

it looks like some versions are just broke in the system... sometimes they disppear and sometimes new ones come back.