Thanks, but I've no idea of exactly what you mean
What is happening is also known as Infinity Mirror or recursive reflection/ image effect. You can look up the effect at
https://en.wikipedia.org/wiki/Droste_effect
The laymans answer to what other have already told you above is that you have turned on Windows Capture (we can see that in your OBS Source list) of the OBS application itself, so OBS displays what you've asked it to display, which is OBS itself, resulting in the recursive image occurs as you see. As R1CH noted, this is exactly should happen with what you have configured.
But that isn't what you want right? Assuming that is the case:
You configured OBS to capture an Application window, that of OBS. Unless you are planning to do a training video on OBS itself, that was probably a mistake.
- The simple approach is to have the OBS Application displayed on a separate monitor (screen) than the one you are capturing. Yes, 2 monitors. And obviously don't use Window Capture of OBS itself. Also, don't use Display Capture with same monitor as OBS is displayed.
- Or start the application you wish to capture, then select Window Capture and select that application
Now, some folks run on a laptop and need to use Display Capture, in which case, during setup, that recursive display is unavoidable. However, once you have all your settings as desired, and start recording/streaming, you'd then minimize OBS. There are many downsides to this approach.
In general, hopefully you understand that real-time video encoding is VERY computationally demanding. So beware high expectations with older/lower-end systems, or laptops that will have their performance severely constrained when they get hot (from the computations mentioned earlier)
Here's the OBS quick-start guide:
OBS Studio - Free and open source software for live streaming and screen recording - obsproject/obs-studio
obsproject.com
I'd also recommend watching the Nerd or Die tutorial video series:
Welcome to our OBS Studio tutorial series! In this series we're going to cover everything that you'll need to know to make your stream look great.Next Video...
www.youtube.com