Understand which products appear
The list joins top-level Magento order items to orders owned by the signed-in customer. It includes orders placed in stores that belong to the current website.

Order status
The extension does not filter by order state or status. A product can therefore appear after its order was cancelled, refunded or otherwise closed. The page is a purchase-history view, not a list of fulfilled quantities.
If your store needs a status-specific reorder policy, the extension does not provide a configuration setting for that filter.
Parent and child items
Child order items are excluded. For a configurable product, the table uses the top-level configurable item and keeps its saved buy request. This avoids showing the parent and selected child as two separate reorder rows.
Show each product only once
When distinct mode is enabled, the latest order item for each Magento product ID is retained. The date column changes from Order Date to Last Ordered.
This grouping uses the product ID, not only the SKU. If a catalog product is deleted and recreated with the same SKU, Magento treats the replacement as a different product.
Deleted and unavailable products
Historical order data can remain after a catalog product is removed. The row can still contain its saved name and SKU, but the image may fall back to a placeholder and the reorder can fail because the current product no longer exists.
The same principle applies when a product is disabled, out of stock or no longer saleable for the current website. The row is historical; successful cart addition depends on the current catalog.