I would like to see which files did not make it to the media libary and, if possible, a reasonable explanation as to what the problem was - this part is probably just a bug report because that is expected behavior.
Another possibility to help find these problem files is to create a separate folder for them so they never get added to the 'imported' folder. Instead, transfer them directly from 'organize' to 'problems'.
This will be very important during an upgrade (as opposed to a minimal or full install) because the media files will already be in the media folder. It might be a good idea to pull media files out of the 'imported' folder to another folder if Liquidsoap determines that it cannot open
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