Normally, North52 Quick Button's will trigger a formula when clicked. However, when you click the button a different formula appears to be firing instead of the one connected to the button.
North52 Quick Buttons can be configured to save the current state of the record to the database, before executing the North52 formula.
In this scenario, if there is a formula connected to the OnSave event of the record, then this formula will assume control and execute it's logic, essentially blocking the button formula from firing.
In most cases it is often unnecessary to have a Client-Side OnSave formula being triggered. Review the logic and if possible move it to a Save - Perform Action formula triggering server-side.
You can disable the pre-save logic on the North52 Quick Button, this will prevent the save from happening and allow the button to execute it's associated North52 formula