Microsoft has released the KB4535996 cumulative update for Windows 10 1903 and Windows 10 1909 that introduces a variety of quality improvements and bug fixes. Microsoft states that they have resolved network printing issues some users are experiencing after installing a security update for the CVE-2020-0674 vulnerability in Internet Explorer. Other notable issues that were fixed are an “unknown username or bad password”” error to be displayed when trying to login to a domain and Local Security Authority Subsystem Service (LSASS) crashes restarting Windows 10.”
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-kb4535996-update-fixes-search-printing-issues/