Only one GoPro Hero 11 works as webcam on Windows 11 (OBS can’t detect both)

I have two GoPro Hero 11 Black cameras connected to my Windows 11 laptop via USB. Both are detected by GoPro Webcam Utility, but in OBS only one appears as a video source. The second GoPro never shows up, even when I add another video capture device. No capture cards, just USB. Has anyone managed to make both work at the same time? Any apps or workarounds that actually let both GoPros appear in OBS?