Steps to reproduce:

1. Create scheduled report and wait with configuration window open
2. In separate window/tab open dashboard included in scheduled report from point 1
3. Try to manipulate service states or trigger expressions to cause some "problems" (to make some popup display in top right corner).
4. When the popup in top right corner appears, quickly change to scheduled report view and click "Test"

Result:
The report PDF will show dashbord with unwanted popup message in top right.
Popup is covering part of dashboard.

See example screenshot of my report.

Expected:
Report will include only dashboard itself, without any popups triggered by problems.