Hi there,
To fix the issue with the Language Switcher shortcode icon, I recommend disabling any caching plugins or optimization plugins you have installed on your website. Sometimes, these types of plugins can interfere with the display of shortcodes.
Once you disable these types of plugins, check if the issue is resolved. If it is, then reactivate the plugins one by one until you can identify the specific plugin causing the issue. This way, you can narrow down the problem and find a solution.
After identifying the problematic plugin, deactivate all the options/settings within that plugin, clear the cache on your website, and then reactivate them one by one while clearing the cache at each step. This way, you can pinpoint the specific option or setting causing the issue.
I hope this helps! Let me know if you have any further questions or concerns.
Best regards,