I created a Blazor project in Visual Studio 2019, using the "Syncfusion Blazor Template Studio" template.
I chose "Syncfusion Blazor Server App" and selected ".NET Core 3.1" for the version.
The template UI forces the selection of at least 1 control, so, I selected "DataGrid" - although, that control has nothing to do with my question. I used all the defaults for the grid.
I chose "Localization", then I created the Visual Studio project.
The template creates the project using Syncfusion.Blazor.dll v18.2.0.59, which won't compile, so, I updated to the latest version available, which was v18.3.0.42.
I commented the line that adds the license, since that really doesn't matter for this scenario:
I then added a breakpoint on the culture controller, to catch the error on the UI:
Then I built and started the application. I then chose a language from the culture picker:
That results in an error at runtime. Using Chrome tools, I checked for the error message and saw this:
No idea why this happens, or how to work around it. It seems to only happen with some languages, not with all.
I've included the project, in case that helps.
Any ideas?