V-ray Sky,Cloud adjust speed

im using the v-ray sun,sky, cloud for the video,
and when i check the rendered sequence, seems cloud is moving fast almost like timelapse.
i dont remember touched anything related to cloud speed..
where can i adjust the speed of the sky, or turn off the moving so i could use sky as a static sky with no cloud animation?

There shouldn’t be movement if you haven’t animated the clouds. Mind if you share the scene (simplified)?

@hermit.crab i sent you the project file.

Did you read my e-mail (in the ticket)? I was not able to reproduce the issue. Did you manage to fix it?