Hi Sheri,
I may have experienced something similar.
One thing I would suggest trying is temporarily adjusting the screen size of the monitor you are using to record. If you are using Windows, you can right click on the desktop and choose Display Settings. You could try different resolution settings, such as 1920 x 1080, etc. Try changing the resolution of your screen, then go back and try the screen recording again and see if it captures the area you want. If it is still too big or small, try adjusting the resolution bigger or smaller and see if the screen recording area gets bigger or smaller.
