Random midi notes being added to parts of song track in Ezkeys.

[Pico2]

Hi, recently noticed random notes being added to parts of song track in Ezkeys 2. When I try to move or delete say a chorus section of the song, randon notes that I haven’t played will appear in a verse section of the song, completely ruining the arrangement. Also when tried copying a ok verse section of the song  onto another Track (track 2) the notes appeared again. Any ideas what’s going on would be great.

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