Hello,
The latest Mp3tag version does not seem to support multi-track files any more in the way it used to be in v2.86 (which I have been using so far).
My test file was created with foobar2000 and contains 2 tracks (AAC format) in 1 MP4 file.
Mp3tag v2.86 shows both tracks (2 lines) and I can edit their tags.
Mp3tag v3.04a only shows the file (1 line) and common tag data.
See the 2 screens attached.
On www.mp3tag.de it says: Mp3tag v2.85 – This version adds support for Matroska (MKA/MKV) and improves handling of multi-track files.
I do not find any further note on multi-track files in info on subsequent releases that s.th. changed here.
What‘s wrong in v3.04a? How can I access and change tags for both tracks?
Thanks + regards
Gery

