Attach to self with ClrMD? HRESULT: 0x80070057

I'm trying to attach the ClrMD in a process to itself:

private static void Main()
{
    var pid = Process.GetCurrentProcess().Id;

    WriteLine($"PID: {pid}");
    using (var dataTarget = DataTarget.AttachToProcess(pid, 1000))
    {
        WriteLine($"ClrMD attached");
    }
}

However, I'm getting the following exception:

PID: 7416

Unhandled Exception: Microsoft.Diagnostics.Runtime.ClrDiagnosticsException: Could not attach to pid 1CF8, HRESULT: 0x80070057
   at Microsoft.Diagnostics.Runtime.DbgEngDataReader..ctor(Int32 pid, AttachFlag flags, UInt32 msecTimeout)
   at Microsoft.Diagnostics.Runtime.DataTarget.AttachToProcess(Int32 pid, UInt32 msecTimeout, AttachFlag attachFlag)
   at Microsoft.Diagnostics.Runtime.DataTarget.AttachToProcess(Int32 pid, UInt32 msecTimeout)
   at BanksySan.Scratch.Console.Program.Main(String[] args)

I can attach in passive mode, but not in Invasive or Non-Invasive mode.

You can use DataTarget.CreateSnapshotAndAttach. This method creates a snapshot of the process and create DataTarget from it. Example:

var processId = Process.GetCurrentProcess().Id;

using (var dataTarget = DataTarget.CreateSnapshotAndAttach(processId))
{
}