This thread is resolved. Here is a description of the problem and solution.
I was able to translate the templates using string translation (like with pages) but it seems all pages are including only the english template.
The footer layout made using Elementor is controlled by the theme through Customizer. Adding the following XML config to WPML → Settings → Custom XML Configuration:
<wpml-config> <admin-texts> <key name="theme_mods_futurio"> <key name="footer-credits"/> </key> </admin-texts> </wpml-config>
made the ID of the template appear in String Translation. Just add the ID of the footer template translation here and everything will be back to normal.
This is the technical support forum for WPML - the multilingual WordPress plugin.