Steps to reproduce:

• Launch NVDA with the following command line:
  nvda --lang=windows
• Press NVDA+ctrl+G to open the General settings

Actual behavior:

• The General settings window does not open
• Error sound is heard

Expected behavior:

General settings panel opens without error

NVDA logs, crash dumps and other attachments:

ERROR - unhandled exception (00:08:25.608) - MainThread (38744):
Traceback (most recent call last):
  File "wx\core.pyc", line 3407, in <lambda>
  File "gui\__init__.pyc", line 230, in onGeneralSettingsCommand
  File "gui\blockAction.pyc", line 60, in funcWrapper
  File "gui\__init__.pyc", line 166, in _popupSettingsDialog
  File "gui\settingsDialogs.pyc", line 464, in __init__
  File "gui\settingsDialogs.pyc", line 194, in __init__
  File "gui\settingsDialogs.pyc", line 4131, in makeSettings
  File "gui\settingsDialogs.pyc", line 533, in makeSettings
  File "gui\settingsDialogs.pyc", line 642, in _doCategoryChange
  File "gui\settingsDialogs.pyc", line 570, in _getCategoryPanel
  File "gui\settingsDialogs.pyc", line 328, in __init__
  File "gui\settingsDialogs.pyc", line 338, in _buildGui
  File "gui\settingsDialogs.pyc", line 727, in makeSettings
IndexError: list index out of range

Additional notes

In the console:

>>> import globalVars
>>> globalVars.appArgs.language
'fr_FR'

So Windows indicates it uses fr_FR, but NVDA's translation corresponding language is only 'fr', i.e. no country code.

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

2022.4beta3

Windows version:

Windows 10 2004 (x64) build 19041.388

Name and version of other software in use when reproducing the issue:

N/A

Other information about your system:

N/A

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

2022.1; same issue

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Not tested, but unrelated.