OBS Source Record stops recording after a few seconds

[nfacha]

After a few seconds recording stops

Side by side are the the source recording and the normal OBS recording, it stopped after around 37s for no apparent reason

If there are any logs that are relevant for debugging purposes let me know and ill get them

[exeldro]

The OBS log file might contain the reason. Can you provide an OBS log file of a session with the issue?

[nfacha]

The OBS log file might contain the reason. Can you provide an OBS log file of a session with the issue?

19:35:43.385: [FFmpeg aac encoder: 'Track1'] bitrate: 160, channels: 2, channel_layout: stereo, track: 1
19:35:43.385: 
19:35:43.404: ==== Recording Start ===============================================
19:35:43.404: [ffmpeg muxer: 'adv_file_output'] Writing file 'C:/Users/nunof/OBSRecordings/2026-01-15_19-35-43.mkv'...
19:35:43.446: ---------------------------------
19:35:43.446: [AV1 encoder: 'Source Record'] settings:
19:35:43.446: 	encoder:      AOM AV1
19:35:43.446: 	rate_control: CBR
19:35:43.446: 	bitrate:      6000
19:35:43.446: 	cqp:          0
19:35:43.446: 	keyint:       -1
19:35:43.446: 	preset:       8
19:35:43.446: 	width:        3840
19:35:43.446: 	height:       2020
19:35:43.446: 	ffmpeg opts:  
19:35:43.446: 
19:35:43.447: ---------------------------------
19:35:43.448: [FFmpeg aac encoder: 'Source Record'] bitrate: 128, channels: 2, channel_layout: stereo, track: 1
19:35:43.448: 
19:35:43.456: [ffmpeg muxer: 'Source Record'] Writing file 'C:/Users/nunof/OBSRecordings/Source/2026-01-15 19-35-43.mkv'...
19:36:08.629: [AOM AV1 encoder: 'Source Record'] Encoding queue duration surpassed 5 seconds, terminating encoder
19:36:08.629: Error encoding with encoder 'Source Record'
19:36:08.643: [ffmpeg muxer: 'Source Record'] Output of file 'C:/Users/nunof/OBSRecordings/Source/2026-01-15 19-35-43.mkv' stopped
19:36:08.644: Output 'Source Record': stopping
19:36:08.644: Output 'Source Record': Total frames output: 602
19:36:08.644: Output 'Source Record': Total drawn frames: 754 (755 attempted)
19:36:08.644: Output 'Source Record': Number of lagged frames due to rendering lag/stalls: 1 (0.1%)
19:36:08.644: warning: 2 frames left in the queue on closing
19:36:08.647: Video stopped, number of skipped frames due to encoding lag: 496/602 (82.4%)
19:44:27.492: [ffmpeg muxer: 'adv_file_output'] Output of file 'C:/Users/nunof/OBSRecordings/2026-01-15_19-35-43.mkv' stopped
19:44:27.492: Output 'adv_file_output': stopping
19:44:27.492: Output 'adv_file_output': Total frames output: 15720
19:44:27.492: Output 'adv_file_output': Total drawn frames: 15723 (15724 attempted)
19:44:27.492: Output 'adv_file_output': Number of lagged frames due to rendering lag/stalls: 1 (0.0%)
19:44:27.494: ==== Recording Stop ================================================
19:44:27.508: warning: 2 frames left in the queue on closing

[exeldro]

So the error is: Encoding queue duration surpassed 5 seconds, terminating encoder

The encoder gets new frames faster than it can process it and stops when the buffer surpasses 5 seconds.
Solutions: use an encoder or encoder settings that uses less resources or lower the frame rate or make more resources available on your system.