The Events where you Change Animation they look very confusing I'm not sure if you misunderstood the how it works the (Else) but here is the translation of your events and see for yourself if that is what you intended to do.
Event(62)Pick any AdventurerSprite.AnimationName = Class & "_AtKR" >>>> And do nothing
Event(63) Else: (Every time that you cannot find any AdventurerSprite at all Playing = Class & "_AtKR") Pick all the sprites that meet the condition (Sprite = Attacking & Sprite.aAngle <= 19) and set their Animation to Class & "_AtKR"
So here you have a problem while it finds at last 1 of them meeting these three conditions
Sprite = Attacking
Sprite.aAngle <= 19
AnimationName = Class & "_AtKR"
The else it will never Run
For the rest of the events set attacking & in combat they are confusing swell. the best thing is to explain in simple words what you trying to do exactly and someone here will help you with the Logic