peterM-20

Problem:
You are using WP All Import to import products into your WooCommerce shop in both German (DE) and English (EN). Attributes are set up for customer filtering and displaying 'Additional Information' on product pages. However, attributes are not available for filtering and the 'Additional Information' does not show in the EN language. Saving a product translation in WooCommerce Multilingual & Multi-Currency without making changes temporarily fixes the issue for that product.
Solution:
The issue arises because the attributes are defined as if they were translated, but they are not accessible in this manner. Attributes are a taxonomy that does not include language. The actual attribute terms contain the language value. You should pass the original attribute that you expect, which corresponds to the intended use. We have confirmed this solution with a test import and found it to be correct.

If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If further assistance is needed, please open a new support ticket at WPML support forum.