This thread is resolved. Here is a description of the problem and solution.
Solution: The Product Attributes are not listing for translation in WooCommerce>>WooCommerce Multilingual>>Attributes screen because it is marked as *Not Translate* in WPML>>Settings>>Custom Taxonomies section
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This topic is split from https://wpml.org/forums/topic/woocommerce-category-translation-no-categories-shown/