I'm trying to cut a few minutes from the start and the end of a MKV file, but I'm running into some issues with cutting on a non-keyframe, where the output wouldn't have audio for the first few minutes, but plays normally throughout the rest of the file and when I would play it through MPC-HC, it would get stuck at the 00:00:00 mark, but plays normally when I scrub forward a bit. In VLC, the audio would play normally, but without video, but scrubbing forward will load the video. If I rewind to the beginning, the video would continue playing, but the sound would cut out.
The file I'm using is x265 10bit with EAC3 audio and the Smart Mode settings is using X265 encoder (Custom) with Elecard HEVC Decoder (Custom).