https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-april-2020-office-updates-with-crash-fixes/

Microsoft released the April 2020 non-security Microsoft Office updates that come with crash fixes, as well as performance and stability improvements for Windows Installer (MSI) editions of Office 2016.

For instance, this month's series of Office non-security updates fix an issue where Word 2016 would crash when trying to save certain documents and an unexpected crash issue impacting OneNote 2016 when the user agent string is longer than 128 characters.