Export Custom Preset & FLAC Audio Preset

Using the latest version 21.01.29, I tried to update an export custom preset I made and when I used it I noticed the aspect ratio on my export changed. It went from 4:3 to 16:9 the latter being what I had the aspect ratio set to at the time I updated the preset. Can this be changed so that export custom presets don’t change the aspect ratio for a project?

The other issue is that the FLAC export preset exports the file in a matroska container. Wouldn’t it be better as just a flac file with a flac extension? Some programs out there don’t except matroska containers.

You control that already with the export save dialog. It does not make sense to automatically exclude only one particular parameter.

This was chosen because raw flac files are not seekable.