@Leomerya12 , @Sly.k , @Mind-Brain .thank you guys.it’s rarer to see so many help in a short time.
Yes.it looks like the shortest path problem,but I already tried that before I post the question,and I tried again just now.no matter I check or uncheck the Boolean,the result is the same.and the jumping only happens when the player is at the location:
And if I use interpretation in tick,it’s like never catch up the target,which is not I want.
I need it to arrive at given time…that’s why I considered a timeline.
thanks you all again .