Ripple delete does not work all the time. Is there a minimum of frames that are required before it will work? I do use it frequently, but several times in the last week, while editing a AVCHD clip, I used the razor to cut the clip and then selected the section by right clicking on it and attempted to select "Ripple Delete." Nothing happened. The words were dimmed, so they could not be selected. I then selected the clip and chose "Clear." This removed it but left the gap. I then right clicked on the gap and attempted to select "Ripple Delete" but it was also dimmed here and would not allow me to select it. I tried shutting down my machine and re booting it, and the same result.
This occurs when other clips on other tracks prevent the Ripple.