This thread is resolved. Here is a description of the problem and solution.
Problem: Product images are not show in the translated product (woocommerce)
In the Settings (Media Translation) is synced, but images are only showing in the default language
Solution: The WP Memory Limit needs to be increased. PHP memory limit is fine but WordPress uses 40Mb as default. Minimum requirements for WPML are 128Mb.
Add this near the top of wp-config.php file (after the php opening tag) to increase WP memory:
/** WP Memory Limit */ define( 'WP_MEMORY_LIMIT', '256M' );
The wp-config.php file is located in your WordPress root directory. It's the same file where the database configuration settings are. You will have to access it by FTP or SFTP in order to edit it.
You can check the current WP Memory Limit value from WPML -> Support in the Info section
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