No preorder date found on Order List

Hello,

I am using Pre-Orders for WooCommerce Pro.

Some of my pre-order orders do not have their order status changed to Pre-Order in the order list.

If I manually change the order status to Pre-Order, the PreOrderDate column then displays
“No preorder date found”

However, when I preview the affected order, I can see that _pre_order_date already has a valid value.

For normal pre-order orders, the _pre_order_date value is visible both in the Order List (PreOrderDate column) and in the Order Preview.

Could you please tell me what might be causing this issue and how I can fix it?

Thank you!