For complex issues, sometimes it's necessary to perform a clean re-installation of Vermintide 2. This involves uninstalling Vermintide 2 as normal, and then proceeding to remove your AppData directory by:
1. Press the Windows key + R
2. Enter %appdata% within the search input and select 'OK'
3. Navigate to AppData\Roaming\Fatshark
4. Delete the entire 'Vermintide 2' directory
Please be aware that by removing your AppData, you will lose any custom configurations such as keybindings. Your progress won't be impacted, as it's stored on our servers.
Afterwards, you can then reinstall Vermintide 2 as normal.