Just installed new version and now can’t empty trash or junk folders with one click
You can always uninstall eM Client, then download the previous version that was working from the Release History. Then just don’t update again until the next service release.
If you choose NOT to delete the database directory when prompted during the uninstall, you will not lose any data or settings, but you can always make a backup using Menu > File > Backup if you feel there is any risk.