Hello Mr Pavels,
I think there is another bug not being addressed by this update. It is the Self-Defense module in Settings/Troubleshooting. It is checked by default. But , I think it is interfering with VPS updates and maybe any other kind of updates. Users have to turn off self-defense in order to get auto-update to work again...And that could leave the computer vulnerable to anti-virus disabling viruses...
No such issue with the avast self-defence and avast auto updates on both my win7 and XP Pro systems and it has been like that since the self-defence module was introduced.
There is something else going on with your system that's for sure, other program updates shouldn't fall foul of the 'avast' self-defence as it only protects avast files/folders/processes/registry entries, etc. but not other programs/areas.
So you should create a new topic and give some more details on the problem, OS, other effected updates and any other security based software that you have installed. If nothing else it may give something to work with as based on what you have posted no one can investigate.