So I figured it out. Thank you @HenkHolterman for your suggestion in the comments, that led to me finding the issue.

In my program.cs I had this line:

`builder.Services.AddSingleton(_ => databaseName);`

Turns out Blazor doesn't like it when you register strings as Singletons... I removed that line and it works fine now.

Cursor thought it would be useful to register the DB name as a singleton so it could easily be used throughout the application. And I failed to catch that.