caps lock light not working Magic Keyboard Numeric Keypad slate gray

Five month old Magic Keyboard with numeric keypad in slate gray caps lock light not working. The little green light does not function. The key function still works. It is just the indicator light.

Search and found similar issues with no solutions from about 6-10 years ago.

I recall it working just a few weeks ago, but not if it was before or after upgrading to Mojave. It's just something you don't pay too much attention to until it doesn't work. Then, YOU GET THIS WITHOUT REALLY TRYING...

I have disconnected. Repaired. Killed Bluetooth prefs. Power cycled keyboard.