Mojo::Redis problems

The Controller for the websocket communication channel that all clients communicate with (worked perfectly! :-) ):

package XXXXXX::Actions::Websocket;
use Modern::Perl;
use utf8;
use Mojo::Base 'Mojolicious::Controller';
use Mojo::IOLoop;
use Mojo::Redis;

sub controlchannel {
    my $self = shift;

    my $tx = $self->tx;
    $tx->kept_alive(1);
    my $redis = Mojo::Redis->new;
    $redis->on(
        message => 'mychannel',
        sub {
            my ( $redis, $err, $message, $channel ) = @_;
            $tx->send( $message || $err );
            $self->app->log->debug("Redis message '$message'");
        }
    );

    my $client_id = sprintf '%s', $tx;
    $self->app->log->debug("WebSocket opened, client: $client_id");
    Mojo::IOLoop->stream( $self->tx->connection )->timeout(300);

    # Incoming message
    $self->on(
        message => sub {
            my ( $self, $message ) = @_;
            $self->app->log->debug("WebSocket message: '$message'");
            $redis->publish( mychannel => $message );
        }
    );

    $self->stash( redis => $redis );

    # Closed
    $self->on(
        finish => sub {
            my ( $self, $code, $reason ) = @_;
            if ( !defined $reason ) {
                $reason = q{[Unknown Reason]},;
            }
            $self->app->log->debug(
"Sitelog WebSocket ($client_id} closed with status $code. Reason: $reason."
            );
            delete $self->stash->{redis};
            undef $tx;
        }
    );
    return 1;
}

1;
====
What Did Not Work:

In startup() in the main application module:
...
use Mojo::Redis;
...
    $self->helper(
        update_clients => sub {
            my $self = shift;
            my $redis = Mojo::Redis->new;
            $redis->publish(mychannel => 'reload');
            return 1;
        }
    );

And then for certain actions, like in a controller later on:

$self->update_clients;

====
What Did Work:
In startup() in the main application module:

...
use Redis;
...
    $self->helper(
        update_clients => sub {
            my $self = shift;
            my $redis = Redis->new;
            $redis->publish('mychannel', 'reloadlogs');
            $redis->quit;
            return 1;
        }
    );