I mean the discussion is mostly useful.
This issue has been solved in internal version, so please wait for official release, that will come soon.
see this thread Insufficient access rights to perform the operation
I’m afraid of poor testing of the eM Client updates. It looks like developers are interested only in some server types and some client computers. But there are a lot of users with different IT environment. The company should improve testing in all used environments (all the officialy supported mail servers, Windows 7, 10, 11, MacOS, usual monitor resolutions from 1024x768 to 3840x2160 at least). There is nothing worse than releasing update with bugs, which are repaired too late. Users are disappointed and reputation goes down.