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5 hours ago, Daresh said:

If you really need to have it random on each page load, you may try to disable cache use in the module:

    public function renderWidget($hookName = null, array $configuration = [])
    {
        //if (!$this->isCached($this->templateFile, $this->getCacheId('ps_featuredproducts'))) {
            $variables = $this->getWidgetVariables($hookName, $configuration);

            if (empty($variables)) {
                return false;
            }

            $this->smarty->assign($variables);
        //}

        return $this->fetch($this->templateFile);
        //return $this->fetch($this->templateFile, $this->getCacheId('ps_featuredproducts'));
    }

Sorry, I just tried that. It didn't work. It removed the module from the main page.