In a process, a screenshot is taken with the Save Screen Capture activity. If the screenshot is as follows or similar;
-Go to Change DPI Scaling Level for Display in Windows 10.
-From here, steps 1, 2 and 3 under the heading Change DPI in the Registry are applied.
After the process steps are completed, the server is restarted.
Again, control is provided with the Save Screen Capture activity. The black area should be gone.