Microsoft released a cumulative 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) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.
Windows 10 update history
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) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.
Windows 10 update history