FW16 KB via stuck at layer 2

FW 16 - Linux / Kubuntu 24.04LTS

The laptop keyboard is stuck at layer 2 and does not come out from it.

I am using https://keyboard.frame.work and I can set keys. On layer 2, I set “Numpad 2” to key “Q” for testing purpose. With keyboard test, I can see “N2” pressed with “Q” key.

I then set “TG(2)” on spacebar and press once. No go.
Also “TG(2)” on enter, and press enter. No go.

I removed the keyboard, and put it back. No go.

Saved and loaded the layout. No go.

Any suggestions to try?

ETA - I loaded the original default layout and it seems to restore. I lose the things I set up but better than stuck at layer 2. So, maybe do over is an option.

Welcome to the forum.
Which keyboard are you trying this on? Any other changes to your keymap?