Is the education edition broken right now? I tried running the following:

INSTALL_DEMOS
CD DEMOS
LOAD HELLO 
RUN

Then pressing ESC twice. But the editor doesn't show up. Am I doing anything wrong here?

That all works for me on Firefox 124.0.1. What browser/OS are you using?

I tested on both Firefox (124.0.1) and Chrome (123.0.6312.58) with Linux. I'm using Hyprland (Wayland), if that matters.

After running RUN the loaded cart starts playing. Pressing ESC once brings me back to the shell. But pressing ESC again does nothing (I'm expecting it to bring me to the editor). I'm not sure if I'm missing anything here, or if something is broken.

Yeah, not sure. I am also on Linux but not using Wayland because I find it pretty unpredictable. Can't say for sure Wayland has anything to do with it, but I can get to the editor/code without a problem.

Ok, the problem was due to my custom keybinding. I remapped my Capslock key so that it inputs Ctrl when held, and Esc when released.

You can reproduce this by holding down Ctrl while tapping Esc. This will allow you to exit from the running game back to the shell, but not switch from the shell to the editor.

To be fair, this has never been a problem for me before and the keybinding works on pretty much every software and games I've tried.