During QC, if there are warnings on the report, to resolve the warnings, you need to navigate back-and-forth between the report dashboard and the report preview. This can be frustrating and time-consuming.
One workaround for this is to have two sessions open. One session with the dashboard report and one session with the report preview. Then you can watch the preview as you make changes to the data.
To prevent frustrating navigation back-and-forth or this "two tabs" workaround, include report warnings on the dashboard - so you can view warnings from the screen you're able to resolve them.