Here’s why this is happening:
The way "Change animation..." works is that if the animation is set to the same as it is currently, nothing happens; the animation continues playing as normal. When the animation changes, the frame is reset to the first one of the new animation.
You are setting the animation to “Walk” or “Idle” every frame, and then changing Run or Attack. When you change the animation the second time, it resets the animation to the first frame.
Try using a trigger once on each of these two events:
