[WPF] Content does not load if WPF app is started from debugger

Description
The application works when started from explorer but Edge does not open the page if started from Visual Studio 2019 Preview 3. It is possible to interact with the edge (right click, inspect, etc.) but nothing is loaded.

Version
SDK: WebView2.1.0.721-prerelease
Runtime: Version 90.0.779.0 (Official build) canary (64-bit)
Framework: WPF, .Net Framework 4.8 and 4.7.2
OS: Windows 10 10.0.19041

Repro Steps

1. Follow the guide at https://docs.microsoft.com/en-us/microsoft-edge/webview2/gettingstarted/wpf
2. Start with Debugger in Visual Studio
3. Source page does not load

It also seems that crashdumps are created

DbgView log

[11412] JsonRpc Error: 10 :
[11412] Exception thrown from request "0" for method GetResult: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> Microsoft.DiagnosticsHub.DataWarehouse.DataWarehouseServiceModuleException: Unknown result ID: 0
[11412] at Microsoft.DiagnosticsHub.DataWarehouse.ServiceModule.Controllers.DataWarehouseController.GetResult(GetResultPayload requestData, Guid taskId, CancellationToken cancellationToken)
[11412] --- End of inner exception stack trace ---
[11412] at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
[11412] at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
[11412] at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
[11412] at StreamJsonRpc.TargetMethod.d__19.MoveNext()
[11412] --- End of stack trace from previous location where exception was thrown ---
[11412] at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
[11412] at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[11412] at StreamJsonRpc.JsonRpc.d__152.MoveNext()
[11412] JsonRpc Error: 10 :
[11412] System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> Microsoft.DiagnosticsHub.DataWarehouse.DataWarehouseServiceModuleException: Unknown result ID: 0
[11412] at Microsoft.DiagnosticsHub.DataWarehouse.ServiceModule.Controllers.DataWarehouseController.GetResult(GetResultPayload requestData, Guid taskId, CancellationToken cancellationToken)
[11412] --- End of inner exception stack trace ---
[11412] at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
[11412] at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
[11412] at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
[11412] at StreamJsonRpc.TargetMethod.d__19.MoveNext()
[11412] --- End of stack trace from previous location where exception was thrown ---
[11412] at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
[11412] at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[11412] at StreamJsonRpc.JsonRpc.d__152.MoveNext(), GetResult, 0, Newtonsoft.Json.Linq.JToken[]
[11412] JsonRpc Error: 10 :
[11412] Exception thrown from request "0" for method GetResult: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> Microsoft.DiagnosticsHub.DataWarehouse.DataWarehouseServiceModuleException: Unknown result ID: 0
[11412] at Microsoft.DiagnosticsHub.DataWarehouse.ServiceModule.Controllers.DataWarehouseController.GetResult(GetResultPayload requestData, Guid taskId, CancellationToken cancellationToken)
[11412] --- End of inner exception stack trace ---
[11412] at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
[11412] at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
[11412] at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
[11412] at StreamJsonRpc.TargetMethod.d__19.MoveNext()
[11412] --- End of stack trace from previous location where exception was thrown ---
[11412] at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
[11412] at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[11412] at StreamJsonRpc.JsonRpc.d__152.MoveNext()
[11412] JsonRpc Error: 10 :
[11412] System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> Microsoft.DiagnosticsHub.DataWarehouse.DataWarehouseServiceModuleException: Unknown result ID: 0
[11412] at Microsoft.DiagnosticsHub.DataWarehouse.ServiceModule.Controllers.DataWarehouseController.GetResult(GetResultPayload requestData, Guid taskId, CancellationToken cancellationToken)
[11412] --- End of inner exception stack trace ---
[11412] at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
[11412] at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
[11412] at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
[11412] at StreamJsonRpc.TargetMethod.d__19.MoveNext()
[11412] --- End of stack trace from previous location where exception was thrown ---
[11412] at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
[11412] at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[11412] at StreamJsonRpc.JsonRpc.d__152.MoveNext(), GetResult, 0, Newtonsoft.Json.Linq.JToken[]
[42200] RecursiveDirectoryCreate( C:\prj\Atum\Atum\bin\Debug\Atum.exe.WebView2\EBWebView directory exists )
[42252] [0127/085102.214:ERROR:filesystem_win.cc(129)] GetFileAttributes C:\prj\Atum\Atum\bin\Debug\Atum.exe.WebView2\EBWebView\Crashpad\attachments\e2c974a9-f832-4ad3-9787-e1b9c19ec63c: The system cannot find the path specified. (0x3)

AB#31582817

Start with the WPF getting-started guide and reproduce the issue by launching the sample from Visual Studio 2019 Preview 3 and Explorer. Compare the DbgView output and crash-dump behavior; done means the source page loads when started under the debugger without the reported failures.