Order Bump – ‘Equal to’ Rule not working

I don’t know when it stopped working but the ‘equal to’ condition doesn’t work like it previously did.

If Cart Total Quantity is equal to 1, when the order bump is added, it reverts the offer product to full price. However, if I set it to 2 or less than or equal to 2, it works as expected and adds the product with the offer discount.

According to the documentation:
Order Bump Exclusion from Calculations: When evaluating cart-based rules, the system automatically excludes the Order Bump’s own products from calculations. This prevents circular logic where adding a bump would change whether it should display. You don’t need to account for this in your rules.
It seems to be disregarding this and including the offer product in the cart-based rule. Hence why it reverts it to full price.

My Conditions are the following
Show If:
Cart Contents
Contains (Products)
At least one of the selected / All of the selected (tried both)
Product A
And If
Cart Total Quantity
Is equal to
1
Offer Product
Product B
Offer Discount
Percent Off / Amount Off (tried both)
Discount: Any Amount
Item Removal Behavior (tried both)
Everything else is as default and it’s not an upsell

Version 11.0.8
Woocommerce Version 10.7.0
No other plugins active