In order for swap-chain resize to work, every reference to the current (back)buffer need to have been released. So, you can do what you were trying to do, but you need to make sure to release those references manually before doing the resize, via calling Release or freeing the CComPtr, or whatever …

I have been trying to figure out how to change the output of my swap chain. I tried recreating my swap chain, but I am getting an error from my IDXGIFactory2:

DXGI ERROR: IDXGIFactory::CreateSwapChain: Only one flip model swap chain can be associate with an HWND, IWindow, or composition surface at a…