If the game crashes on launch, you can try forcing it back to DX11 by adding -dx11 to your launch options.
Based on common naming conventions in the rhythm gaming community, this "DDRE2DX12" pack likely includes: Archivo de Descarga DDRE2DX12.torrent
To use the DX12 features of this pack, you must have a GPU that supports Feature Level 12_1 (such as an NVIDIA GTX 970 or newer). If the game crashes on launch, you can