I tried to create a video of moving nature scene but the result is just a 15 seconds video of still image

I tried to create a video of a nature scene where wind blows and trees and grass waves naturally. But the result of still image that runs for 15 seconds is very disappointing considering that it took 375 tokens. I used Kling 3.0 1080p for 15 seconds but the result is unacceptable. It didnt even try to make a video. This is my second time that I tried this and got same result. 15 seconds video where not a single pixel is moving, and I wasted 750 tokens for that. 

[Prompt]

A gentle summer breeze blowing through the grassy field, causing the grass and the prominent tree on the left to sway softly and naturally. The bright setting sun, the scattered clouds in the sky, and the distant mountains remain completely stationary. smooth motion, high realistic details.