I am finding the same thing after installing Ableton live 8.3.3 - opening a project created in a prior version, saving successfully then re-opening the project results in the above error - nearly all of my projects are experiencing this. Between Versions of Suite 8, and hardware i have over $1000.00 invested and now I find I cannot use files created in a prior version. I need some assistance here without sending all of my files. This shouldn't happen!!!!!
    obxwindsurf 5 years ago