Hello Meow,
After testing import with file you attached, we got message “3 / 6 item(s) could not be added due to blank title/invalid post type/invalid characters used in data.”.
So listing contains invalid characters will not be imported. You have invalid characters in post titles of last 3 listings.
I have imported csv after replacing invalid characters with Chinese characters and it successfully imported.
P.S.
If you have WP_DEBUG enabled in wp-config.php then you could see log errors for listings which are not imported.
Also you could see message after import process finished about import status. Messages are displayed with css class .updated, but may be you have hidden those messages via custom style.
Let us know.
Thanks,
Kiran