[Risolto] Secondary languages missing Color Value On Google Merchant Center.

Background of the issue:
I'm using Google Product Feed Plugin (By Ademti Software) to upload product feeds to google merchant center. It works fine for my website default English language. But for the secondary languages, the color and age value is missing. here is the screenshot of error showing on Google Merchant Center: link nascosto

We put the color value under google product feed informatoin section. as below,
link nascosto
But for secondary language, it didn't sync the value, as you can see below,
link nascosto

I saw that WPML compatible with Google Product Feed Plugin: https://wpml.org/plugin/woocommerce-google-product-feed/#:~:text=WooCommerce%20Google%20Product%20Feed%20is,multilingual%20sites%20without%20experiencing%20issues.
May i have your assistant with this issue? Thanks

Symptoms:
For secondary languages, the color and age value is missing in the Google Merchant Center. Error screenshot: link nascosto. The color value is not syncing for secondary languages as shown here: link nascosto.

Questions:
May I have your assistance with this issue?