So, to follow up on my previous similar problem…I switched to WPML as my translation plugin for Rise and their customer support is so good they taught me everything I needed to get hidden strings to show up. Other “string finders” couldn’t find my Home Hero text (the text that appears over the main image on the home page), which is part of the admin strings. I ended up using a FTP application and an additional plugin to make a wpml-config.xml file in my root folder, that specified which strings to use. Sounds complicated, but WPML customer support told me everything I needed to know and it took about an hour once I had that info. Perhaps Polylang has a similar type of config file possibility? Or, switch to WPML. They offer their services free for tax-exempt organizations, in case that is relevant.