For some reason when downloading Opus audio only, it's still left as a .webm file, and I have to rename it as .opus. Also, for some reason, dBpoweramp shows less stats on this kind of file when hovering mouse on it, like it doesn't calculate the bitrate like it does for other audio files. However, the hover info works for older files downloaded with this extension when it worked. Newest "good" file for me is from 2020.05.02 (may).

So, there may be something weird about the container. However, the files definitely do contain an opus stream only, and they play fine on MPC-HC and on Musicolet on android.

I don't know if this a ffmpeg issue, I tried downloading using different ones. Or is it even needed for this? For the native client, it says "Install native client (1/2)" and in the test shows 0.9.1 on green background. Not sure what the problem is.

I don't quite understand some of the download option checkboxes, but changing them didn't resolve the issue of opus audio being .webm.