The keyboard is not being correctly recognized under MacOS 15 beta 5. In my case, on accessibility -> keyboard -> keyboard settings -> input sources, all keyboards are showing a key between "Z" and left Shift, which is not the case. And this key, should be under "esc".
Please file a bug report using the Feedback Assistant tool to upload additional information about your issue including logs from the device and screenshots of the keyboard layout you are experiencing: https://developer.apple.com/bug-reporting/ After you create your report, reply here with the Feedback ID so I can take a look
