Question / Help OBS preview is perfect but output file is a black screen

[Meeesh]

I am trying to record, but all my file outputs have a black screen.
My preview is 100% perfect, but the actual file output is just a black screen, with audio still fine.
I looked everywhere and couldn't find anything for this problem. Below are my PC specs and OBS settings. Log file is also attached.

Thanks.

PC Specs:
Desktop
GTX 780
i7 4790K
16GB 1600Mhz RAM
Other stuff doesn't matter

Here are my settings:

[Audio]
SyncToVideoTime=0
DesktopVolume=1.000000
MicVolume=0.736364
Device=Default

[Video]
FullRange=0
UnlockFPS=0
Gamma=0
Filter=0
BaseHeight=1080
BaseWidth=1920
DisableAero=0
Downscale=1.000000
FPS=60
Monitor=0

[Video Encoding]
QSVPreset=1
QSVUseVideoEncoderSettings=0
CustomQSVSettings=
CustomSettings=qp=0
UseCustomSettings=0
UseCFR=1
KeyframeInterval=0
UseBufferSize=0
PadCBR=1
UseCBR=1
Encoder=x264
NVENCPreset=Automatic
X264Profile=high
Quality=8
Preset=veryfast
MaxBitrate=1048576
BufferSize=1048576

[Audio Encoding]
Codec=AAC
isStereo=1
Bitrate=320
Format=1

[Publish]
DisableSendWindowOptimization=0
LowLatencyMethod=0
LatencyFactor=20
ReplayBufferSavePath=C:\Users\Hieuy\Videos\Replay-$T.flv
ReplayBufferLength=1
SavePath=C:\Users\Hieuy\Videos\capture.mp4
SaveToFile=0
Delay=0
KeepRecording=0
AutoReconnectTimeout=10
AutoReconnect=1
LowLatencyMode=0
URL=
PlayPath=
ServiceFile=
BindToIP=Default
Mode=1
Service=0

[QSV (Advanced)]
BufferSizeInKB=0
MaxKbps=0
TargetKbps=1000

[General]
Priority=Normal
UseMultithreadedOptimizations=1

 

[Jack0r]

Hmm in that log your nvenc crashed apparently. But in general I would recommend to check the Video in VLC Media Player. Its often just a problem of a missing codec.
If you keep having problems, try recording again, then upload us the current log afterwards.

 

[Meeesh]

Ok I tried to open in in VLC but it did not run, my other videos work fine with it, but this one doesn't play anything. A weird thing is that it does in fact work when I output to an .flv but .mp4 does not work and I would prefer to use an .mp4. Another thing is that the color output is really weird, the colors look really washed out and the contrast and saturation is messed up in the video from what it is actually supposed to look like in game. The preview is fine, but not the output.

 

[Jack0r]

If the video is an mp4 and obs could not finish it, that would explain playback problems. A recent version of VLC also had a problem with some mp4 files, so you could try getting a more recent or the last stable version of it.
The colors will slightly change as they are not saved in rgb format in the video, but you can see if activating "Encode in Full Range" in the advanced settings helps the washed out effect and contrast.