Animation Loop

Hello everyone, I allow myself to posted a subject because I have a problem with my machine ETAS sour EU4 13
indeed wanting to create an animation takes I end up with an animation bug
when I right click annimation fire in a loop , making a simulation I discovered that
animation plays ping pong between Fire and AimAt and never passes DropRifle , it 's been 2 days that I seek
to solve this problem without success.

if you have given me to suggest I’m interested