https://wccftech.com/microsoft-fixes-windows-10-1909-file-explorer-kb4532695/

Windows 10 November 2019 Update is running on over 15% of all Windows 10 machines. While the update has been free of any major bugs, there were some File Explorer problems that users had reported.

Microsoft had focused on performance improvements with the November 2019 Update, releasing very minor new feature changes. These included tying search with File Explorer, enabling users to quickly find files on their devices. However, this feature didn't really work as it was intended to. Some of the reported bugs included: