Lumetri Colour Not Working

Hi.

First post, until now I have managed with other forum posts helping me through problems. I am making an intro screen for highlights of various boxing fights using video in text. I need an orange tint on the video to make it stand out against the black background, I have managed this on the first example, but I cannot get it to happen again. I thought it was an issue with nesting. I have unnested the video. Still cannot seem to edit the colour tint. 

Thanks