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"Can't delete undo.cfg" in Ableton Live



    • open Ableton Live (64 bit) with empty set
    • add Bias FX (64 bit) plugin to audio or MIDI track
    • close Ableton
    • "Do you want to save?" -> No
    • "Can't delete undo.cfg"
    • open Ableton again, get a message again about failed undo system

    It's definitely related to Bias FX, have never gotten this message under any other circumstances before.
    When I go to the preferences folder and delete the undo.cfg manually, the issue pops up again the next time when I use Bias FX in Ableton.

    Any tips how to solve this?
    Thanks for your help.