Add-to-cart looks fine in the mini cart pop-up, yet the moment I navigate to the cart or checkout the basket shows as empty. No recent plugin or theme updates preceded the issue, and after disabling every plugin except WooCommerce the problem still occurs. I’m not certain whether past custom code tweaks could be involved, so I need a thorough investigation. Your task is to identify the underlying cause—whether it’s session handling, cache rules, cookie conflicts, theme overrides, or stray snippets—and implement a permanent fix so products persist all the way through checkout. Please work directly on my staging or live site (we can coordinate access) and verify the repair with at least two successful test orders. Deliverable • A functioning cart/checkout flow where items added remain visible until order completion—no matter the product type or quantity. I’ll close the project once I can replicate the fix myself in an incognito browser session.