Mitazi

@mcrouse in my case system date must be 7.2 or before, so it can 6.5 load correct and uninstall correctly. For installing another version system date must be today. If you are installing 6.6 or 7.x on 6.5, then the date must be 7.2 or earlier during installation, to be able to properly uninstall 6.5. You can then change the date to today before restart.

Unfortunately there is fatal problem in downloading metadata3 which results in this issue. I expect there will be new version available at least for testing during upcoming week.
Only possible workaround for now is to download metadata3 files manually - there should be one for each application and it is identical to file available on ESET servers = it is digitally signed. Great help would be output you already provided with list of metadata3 files downloaded by ESMC - only files for applications you are actually using is required to simplify things.