WP Rocket support fixed this for me 🙂
Excluding external JS file from translate.google.com.
(added mu-plugins/wprocket-external-js.php)
Everything works fine:
flytonic theme
Google Language Translator v.5.0.23 (free version)
WP Rocket plugin /JS minification activated and
JS files to exclude from minification: /wp-content/plugins/google-language-translator/js/flags.js
Not working:
Google Language Translator v.5.0.24+ (free version)
WP Rocket plugin /JS minification activated and
JS files to exclude from minification: /wp-content/plugins/google-language-translator/js/load-flags.js
Overall I think I tried everything to make it work, but grrrr no luck 🙁
At least v.5.0.23 works fine.. so far 🙂