The rules list all possible fouls. Which specific foul occurs?
Here are the rules:
https://wpapool.com/rules-of-play/
I can't find any violation in there. However, there is this:
6.16 Ball Rack Template Foul
It is a foul when a Ball Rack Template, removed from the playing surface, interferes with the game i.e. if the template is lying on the rail and a ball (cue or object ball) touches the template that is lying on the rail.
But wait, there's more. The Regulations (as opposed to the Rules) describe other aspects of using a template. Specifically, the template must be removed as soon after the break as possible. "As possible" brings in the exceptions of too many balls on the template to be sure that they all go back correctly and two balls frozen on the template. It is forbidden to remove the template from under two frozen balls.
So, it is really unlikely that a game following the rules and regulations will arrive at a situation where the player will be able to remove the template mid-shot, but it is possible. It seems that it will not be a foul and that it is actually recommended.
