Code:
18:50:29.670: warning: mjpeg_decode_dc: bad vlc: 0:0 (0000025949747088)
18:50:29.670: error: error dc
18:50:29.670: error: error y=132 x=91
18:50:29.670: warning: EOI missing, emulating
18:50:29.682: warning: Found EOI before any SOF, ignoring
18:50:29.682: fatal: No JPEG data found in image
18:50:29.683: Webcam_C922_(ggf.Wechseln): Error decoding video
Likely bad wiring. At least, try to re-plug your video capture devices (web camera, capture card etc).
As for the forced shutdown, please take a look at 3rd party software too. If it is installed and running it may cause interference for normal work of OBS. Here is the list of known problematic applications:
OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming. Stream to Twitch, YouTube and many other providers or record your own videos with high quality H264 / AAC encoding.
obsproject.com
And there are other cases. For example, Logitech was known for overwriting OBS settings and sometimes for "never stopping" recordings:
Hi all! I'm having a big problem with OBS and it's driving me crazy. When I've finished recording, the program gets stuck on "stopping recording" and I have to force-close the "obs-ffmpeg-mux.exe" service to actually stop it. This causes the corruption of the recorded file (if it is a...
obsproject.com
For me even the deactivated authentication reactivates itself automatically on restart.. If you open OBS as Administrator it will remind you settings... Yes I know it's stupid but it's the way I got this fixed.
obsproject.com
Also, it wise to try OBS in safe mode (the
--safe-mode
command line key), so it will run with minimum set of plugins, just for the test purposes.