Model 100 example firmware breaks LED key

Help and Getting Started
1

Hi all, I have just followed this tutorial Build and install the latest firmware for your keyboard — Kaleidoscope documentation to get a sketch for my Model 100 built from

File > Examples > Kaleidoscope > Devices > Keyboardio > Model 100

The sketch compiled and uploaded, and the keyboard seems to work as expected for all the buttons I’ve tested – except for the “led” key which no longer cycles through the various LED states that it used to on the stock firmware. The leds just stay powered off.

I see some logic in the setup function

  // Unless configured otherwise with Chrysalis, we want to make sure that the
  // firmware starts with LED effects off. This avoids over-taxing devices that
  // don't have a lot of power to share with USB devices
  DefaultLEDModeConfig.activateLEDModeIfUnconfigured(&LEDOff);

but there are also other settings higher up

  // Set the rainbow effects to be reasonably bright, but low enough
  // to mitigate audible noise in some environments.
  LEDRainbowEffect.brightness(170);
  LEDRainbowWaveEffect.brightness(160);

which makes me think it is intended to work by default.

Is this known / expected?