Recent problem - hope I can tweak the settings to fix it. Running on a wireless keyboard through a KVM switch, the CapsLock key doesn't trigger until I release it -- the time doesn't start on mouse down, but on mouse up.
The Scroll Lock key is still working fine -- I can see the little millisecond display and the acknowledgment of key state change happening on mouse down action.
But for Caps Lock, I don't see the little millisecond display until the mouse up action occurs, and of course the timer never advances.
FWIW, one of the computers this happens on is a laptop. When that laptop is off the docking station and I'm using its own built-in keyboard, the Caps Lock timer works just fine. The problem only happens with the new wireless keyboard.