I guess there is a problem with OBS Studio 26.0.0 and the Oculus Software.
Since I updated my OBS Studio to Version 26.0.0, I get a black screen within my Oculus Rift CV1. All tips according to black screesn in Oculus Rift didn't work. So I ordered a Rift S and there I also get a black screen. After deinstalling OBS Studio, the RIFT S and the Rift CV1 work well. Even when I install OBS Studio 25.0.8 all works well and I don't get black screens in Rift and Rift S. So I guess this has something to do with the new version of OBS Studio and probably with the new virtual OBS camera...
Since I updated my OBS Studio to Version 26.0.0, I get a black screen within my Oculus Rift CV1. All tips according to black screesn in Oculus Rift didn't work. So I ordered a Rift S and there I also get a black screen. After deinstalling OBS Studio, the RIFT S and the Rift CV1 work well. Even when I install OBS Studio 25.0.8 all works well and I don't get black screens in Rift and Rift S. So I guess this has something to do with the new version of OBS Studio and probably with the new virtual OBS camera...