I checked the list of known issues and it wasn't there - basically Le Monarque will stun an Overload champion on the first shot, but it doesn't stop the champion's health regen in hits after the first. If it worked as expected (and how it has worked in the past before having anti-Overload built-in), as long as shots were being continuously landed on the champion it would not regen HP. I apologize if this [i]has[/i] been acknowledged somewhere already.