[Jesse lee Cairnie]

I am having this problem as well.. “An invalid public movie atom was found in the movie.” on any ProRes4444 Alexa footage on Mac.. I am trying to rebuild the atom structure.. but am having no luck.. I seem to have read that a security update has cause this error in QT.. but can not seem to find a fix.. some have said they erased and copied the directory of HD/system/library/quicktime and HD/system/library/components but have yet to confirm that as a fix.. and dont have access to an un-updated system..