Update BWA solution start guidance

Author: guardrex

aspnetcore/blazor/security/includes/troubleshoot-server.md

@@ -103,9 +103,12 @@ A functioning app may fail immediately after upgrading either the .NET Core SDK
 > [!NOTE]
 > Use of package versions incompatible with the app's target framework isn't supported. For information on a package, use the [NuGet Gallery](https://www.nuget.org).
 
-### Run the server app
+### Start the solution
 
-When testing and troubleshooting Blazor Web App, make sure that you're running the app from the server project.
+When testing and troubleshooting Blazor Web App, make sure that:
+
+* For one of the Backend-for-Frontend (BFF) pattern sample apps that you start the solution from the ***`Aspire/Aspire.AppHost` project***.
+* For one of the non-BFF pattern sample apps that you start the solution from the ***server project***.
 
 ### Inspect the user