Mouse/keyboard not working with scrcpy, how to fix?

My Samsung Galaxy A24 phone used to work fine with my Windows 10 laptop via scrcpy.exe, on a USB-C cable. I did not change anything in the setup. Suddenly, now scrcpy shows the phone's screen fine on the laptop's screen, but mouse clicks have no effect, both left-click and right-click. How do I fix this? What I have tried is: - Restart the phone; - Pull out the USB cable cable and connect again. - Revoke USB debugging permissions; - Turn off and then on USB debugging. To no avail. Still, mouse clicks do nothing, whereas the phone's screen is shown fine, and directly touching the phone's own screen with the finger works as expected.