Source Record Replay Buffer AV Desync

[Riotline]

An issue that I've been able to reproduce has been the Source Record causing the main program as well as the source recording to lose AV sync.

In all cases I've seen, the audio appears to be correctly timed but the video is heavily delayed by few minutes. The OBS preview and OBS program both do not show this Desync nor does the audio monitoring. The settings for the source record was mkv replay buffer 25s, capturing a specific audio track with an attempt to use NVENC, Quick sync, and AMD encoding CQP.
I would like to mention though that it was added onto a scene. Nothing was wrong with the replays or main program initially but it did slowly drift which also appears to have caused audio static and artifacts further the two drifted. The issue was noticed on the actually end user's side on YT/Twitch and no indication from OBS side other than the actual recording files.

Another issue I'm having is to do with Source Record bumping my total system CPU usage. Will create a separate issue thread (#88) but unsure whether tied to this issue.

[Riotline]

Have not seen this issue when disabling specific audio track capturing/recording. This also appears to reduce some of the high CPU usage from #88. Will investigate further