I lose surround sound when playing transcoded media

[theolaa]

Hello,

I've been having an irritating problem where when transcoding, my receiver no longer detects surround sound. It doesn't happen all the time, but it happens more often than not. I have an LG C3 TV and it outputs audio to my PIONEER Elite VSXLX305 receiver over HDMI eARC. It's particularly noticeable when I try to use a subtitle format that requires transcoding (DVDSUB and PGSUB seem to always do that for me), and the surround sound that was previously working on that same video file stops working when I put the subtitles on. Sometimes the playback info window says transcoding to 6 channels, sometimes it says 2 channels (even if the source is 6 channel).

Has anyone else experienced this or possibly know the cause? Any tips on how to continue troubleshooting?

Thanks,