C# SetWindowPos causes window not to be movable

Question

I am opening a couple of external windows (remote app windows) from my .NET application. However, after the two windows are open, and after I get their respective window handles, I loop through them to set them as TopMost and also to move them to a specific location. But after that, both windows cannot be moved. When I click on the window title to drag the windows, they do not want to move. Maybe I am not setting the proper parameters in the SetWindowPos method?

                            windwos = FindRemoteDesktop();
                            foreach (var window in windwos)
                            {
                                //UnsafeNativeMethods.SetParent(window, windowHandle);
                                UnsafeNativeMethods.BringWindowToTop(window);
                                //UnsafeNativeMethods.SetForegroundWindow(window);
                                UnsafeNativeMethods.SetFocus(window);
                                UnsafeNativeMethods.SetWindowPos(window, UnsafeNativeMethods.HWND_TOPMOST, x, y, width, height, 
                                    (UnsafeNativeMethods.SetWindowPosFlags)(UnsafeNativeMethods.SC_MOVE | UnsafeNativeMethods.SWP_NOSIZE)); // UnsafeNativeMethods.SWP_NOMOVE | 
                                UnsafeNativeMethods.MoveWindow(window, x, y, width, height, true);
                            }