When assigning Ascension points, there appears to be problems so that pointing at the edges of some skills will activate other skills, and then clicking will assign points into the wrong skill.
A good demo of this is the Monk Chi Blast skill - when you mouse over the center of the button, it is selected and you can click it. If you move the mouse over to the left edge however, it will switch to Pole Smash while the mouse is still over Chi Blast. If you click at this point, you have assigned to the wrong skill and will need to reset to correct it.
Video available, but it pretty much happens with all the buttons that have one immediately to their left.
Repro Chance: 100%
Steps for Bug Repro:
1) Go to Ascension screen for a hero with points to spend
2) In the Offense section, put your mouse on the right side of the Hero Damage button so it is selected
3) Slowly move to the left
4) Note that when you get close to the left edge, it switches the Hero Health to be the active button.
Expected Results: spend points on the button that is selected, not one to the left of it