My GMMK Pro’s LEDs have suddenly stopped working.
The keyboard still works fine on the other hand.
I have tried switching between the profiles and reinstalling Glorious Core but it has not changed anything.
Tried a different USB cable but that did not change anything neither.
Try a full reset using the qmk software. Download the QMK software and the firmware you want, run QMK and load the firmware package. Then disconnect the keyboard, hold down the space bar + b and plug it it. It’s should recognize the board. Now press Flash and it’ll reflash the board.
I went through this process just recently with support. They may need to link you to the qmk