Usualy i can scroll trough the event pan crop on a text i overlayed on a video. above it. But now when i scroll trough the event pan crop it does not folow the video.

It's hard to explain, but i used to be able to put down a text above a video file. Then i would enter Event pan Crop and i could slipe trough the crop and the length of the text would follow the video so i could precisly know where my text where at all time compared to the video. Now when i slike the event pan crop doesent follow the video, let's ay the text is for 5 seconds. i should follow the 5 second length of the video where i placed the text. Any help here? i've basicly tried what i can think of and sometimes it works and sometimes it just does not work. O would like to know what i need to do to be able to see the event pan crop change as i scroll through it overlayed on a video.

Any help is nice <3

soz for ma crap english