Google: The gender is showing as default despite it appearing as male or female in the product attribute. How do I resolve this?

Sometimes, the plugin detects the previously saved attributes. This might be due to our plugin detecting the value saved at some point of time.
To resolve this, add set attribute_granularity to 0 command in the ‘Advanced Commands’ box and click on ‘Update’.
The command above basically tells the plugin to not search/find extra attributes from the WordPress wp_postmeta table.