[Bug] Audio Tracks Disappear After Undo, Again

to reproduce this issues I need following detailed infos :

  • Was the audio editor open when you tapped undo?
    → No

  • Was this the first time you used undo in the project?
    → No

  • Has the original project been created with a version before 1.2 (if so, what version has been used)?
    → No

  • How many audio tracks are used in the project?
    → 5

  • How many audio files are used in the project?
    → not sure. 3 tracks recorded live via Audiobus, 2 tracks with imported audio via AudioCopy

  • Were all the audio files recorded or did you imported some or all from existing audio files from the Mediabay?
    → see above

  • Did you use the audio editor a lot in the project? Did you use it for all the different audio files?
    → No