This thread is resolved. Here is a description of the problem and solution.
Problem:
You are experiencing issues where some product attributes are not showing on the frontend, and those that are visible are not translated.
Solution:
We are currently addressing this issue. We recommend checking the related support ticket where we are discussing this problem in detail. Please provide your feedback there to help us better understand and resolve the issue. You can find the support ticket here: Product Categories Not Assigned After Translation.
If this solution becomes irrelevant due to updates or if it does not apply 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 the issue persists, please open a new support ticket at WPML Support Forum.
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