Strange behaviour using director random

[duja at torlen.net]

I added this to my vcl:

sub vcl_pass {
        set bereq.http.Connection = "close";
}

sub vcl_miss {
        set bereq.http.Connection = "close";
}

But I got the same behaviour, only the last child in the director section is getting the traffic.

Should I open a ticket about this?

/ E