Microsoft released a cumulative update KB4577063 (https://support.microsoft.com/en-us/help/4577063/windows-10-update-kb4577063) with non-security improvements and fixes for Windows 10 Version 2004. The update addresses a long list of issues which can be seen in the referenced KB Article.
Note: If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.
To download and install the update, go to Settings -> Update and Security -> Windows Update and select Check for updates. The standalone package for this update is available in the Microsoft Update Catalog. In addition, with Windows Update, the latest SSU (KB4577266 (https://support.microsoft.com/en-us/help/4577266)) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog (http://www.catalog.update.microsoft.com/home.aspx).
Windows 10 update history (https://support.microsoft.com/en-us/help/4555932)