Adjustment Layer doesn't show when not rendered

I used an adjustment layer over my clips and applied a crop effect to them in order to get those black bars on the top and bottom. However, those black bars do not show unless I render the effects. This is quite annoying because whenever I make a single change to the adjustment layer, it all disappears and I have to render everything again. This also happens whenever I put a new clips under the adjustment layer. Is there any way to get around this problem so I can edit faster without having to keep on rendering?

Here is the screenshot of the part of the clip that hasn't been rendered. Notice the red rendering bar, and that the black bars aren't present.

And here is the screenshot of the rendered part. The black bars are present, and the clip is under the green rendering bar.