Rank beginner with fcpx here. I keep having trouble using the effects. Sometimes I move my cursor into the little window for a given effect, and I can scrub back and forth, and sometimes I can edit the parameters of the effect, but it seems I can never do both.
As a concrete example, in this screenshot, I've moved my cursor into the "censor" effect which pixelates a circle in the center of the picture.
When I did this previously, the circle of pixelation had handles on it so I could drag it and resize it, and the inspector had a number of settings I could change.
Now I'm in a state where I can't preview the effect, the inspector isn't showing the settings, and more often than not, double-clicking the effect has no effect.
Is there some sort of mode switch or setting I'm missing?