Video screenshot is not available in the game


I have activated video on in the settings, but the game neither saves the 15 seconds of video automatically nor can I trigger it manually. The video button is grayed out and it says “Video screenshot currently not possible”. The picture screenshots work, manually and automatically.
I have a Windows 11 PC with an AMD Ryzen 7 7800X3D CPU and an AMD Radeon RX 7900 XTX graphics card.