The cart notice changes flex once a product quantity gets updated.

Dear developer,
I am facing a conflict with the plugin. I set a message to show in cart page. The message container is inside the flex of cart items. It is showing the message exactly the way I wanted it to show.
But once I change the quantity of the product or remove a product(if there are multiple) – the message changes it’s flex. It shifts into the woocommerce info message “cart updated” flex.
This looks weird to the customers.
Kindly, help me fix this.

Thanking you,