This thread is resolved. Here is a description of the problem and solution.
Problem:
The client is experiencing an issue where the logo is missing in the header for two of the four languages on their site.
Solution:
If you're facing a similar issue with your logo not appearing correctly across different language versions of your site, we recommend the following steps:
1. Ensure that the WPML Media Translation plugin is installed and activated. You can install it via your WP dashboard under Plugins >> Add New Plugin >> Commercial tab, or download it from here.
2. Navigate to WPML >> Media Translation.
3. Use the search function to find the logo by entering 'logo' and clicking the Filter button.
4. Click on the Plus (+) icon next to the logo, add the logo name in the Name field to enable the save button, and then click 'Save media translation'.
5. Clear all types of site/server/CDN cache.
If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, please check related known issues at https://wpml.org/known-issues/, verify the version of the permanent fix, and confirm that you have installed the latest versions of themes and plugins. We highly recommend opening a new support ticket for further assistance at WPML support forum.
This is the technical support forum for WPML - the multilingual WordPress plugin.
Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.

