On Big Sur 11.2.3…
If I use Shift-Command-4 to take a screenshot, the crosshairs is stuck and will not move with my mouse. It works fine however on a different User Account on my Mac. It also works fine on the main user account if I use Shift-Command-5 (the entire screenshot app) rather than Shift-Command-4 (screenshot a selected area).
I checked my Keyboard/Shortcuts settings and chose Reset.
I rebooted my computer.
Is there a .plist related to the Screenshots function that I can delete to fix it as is common with Apple software?