If you change the language in vNext, you will be asked to restart the application. In specific cases, this can throw an exception.
This is due to a bug in Windows. More specifically, in WPF itself (https://github.com/dotnet/wpf/issues/381). It can be solved by installing .NET Framework 4.8.1 (which can be downloaded here: https://dotnet.microsoft.com/en-us/download/dotnet-framework/net481).
