Same here.
It seems that even the official demo doesn’t work properly.
I tested in multiple desktop browsers, as well as on mobile and apparently you can’t minimize the popups at all.
It seems that the correct name for the mapping property should be “categories”.
I don’t know why now the plugin only allows me to select “category” for mapping, which is not correct. At some point in the past it was fine, though.
I worked around this by manually editing the import headers in DB (wp_options -> where option_name = ‘woocsv_headers’) so that it contains a reference to “categories” instead of “category”.
To edit the option_value field you need to use php deserialize() and serialize() back again.
