verifresh on "[Plugin: WooCommerce] Autopopulate checkout - billing and shipping"

A strange phenomenon in my checkout page. My own address is being automatically filled in on checkout pages from customers. I cannot figure out how to stop this, having checked through the Woocommerce options. The result has been that customer orders arrive with my shipping address on them, which leads to a number of problems . . . I have logged out of WordPress and logged out all users as well. But no luck.
Any insights?

https://wordpress.org/plugins/woocommerce/