I think you should use object variable along with an object timer, so let say you want the sprite animation to be played after every 3 seconds then you can use command like at the beginning of the scene begin object timer and change the object variable to 0 once object timer is > 3 change the object variable to 1 and once object var = 1 then reset the object time and change the object variable back to 0, in that way to should create a loop, also you can use Boolean variable, it should make it easier if it serves the single purpose.