Windows 10 May 2020 Update, otherwise known as version 2004, was released in May with at least ten known issues. Microsoft acknowledged that this feature update is also plagued with a bug that breaks Drive Optimize tool. After ignoring reports and feedback for more than 5 months, Microsoft is finally fixing the defragmentation problem with Build 19042.487 (20H2) for Insiders. Microsoft is also expected to release these fixes for non-Insiders later this week. Windows 10’s built-in maintenance tool started defragging an SSD drive much more often when you restart Windows.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-tests-fix-for-bug-that-defrags-ssd-drives-too-often/