I'm no HTML::Template expert, but your code is weird. Here is an example adapted from
http://search.cpan.org/~tinita/HTML-Template-Compiled-0.92_001/lib/HTML/Template/Compiled/Reference.pod#LOOP,_WHILE,_EACH
http://search.cpan.org/src/TINITA/HTML-Template-Compiled-0.92_001/t/21_while.t

#!/usr/bin/perl --


use strict;
use warnings;

use HTML::Template::Compiled;

{

    my $htc = HTML::Template::Compiled->new(
        scalarref => \'<%each foo%>key <%= __key__ %>=<%= __value__ %>
<%/each%>',
        debug => 0,
        loop_context_vars => 1,
    );
    $htc->param(foo => { a => 1, b => 2, c => 3 });
    my $out = $htc->output;

    print $out,$/;

}

{

    my $htc = HTML::Template::Compiled->new(
        scalarref => \'<TMPL_EACH foo>key <TMPL_VAR __key__ >=<TMPL_VA
+R __value__>
</TMPL_EACH>',
        debug => 0,
        loop_context_vars => 1,
    );
    $htc->param(foo => { a => 1, b => 2, c => 3 });
    my $out = $htc->output;

    print $out,$/;
}
__END__
key c=3
key a=1
key b=2

key c=3
key a=1
key b=2
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