https://wccftech.com/windows-10-october-2020-update-build-19042-546-kb4577063/

Microsoft has finalized the next version of its desktop operating system, however, it continues to deliver cumulative updates to address last minute bugs and issues. The company has today released Windows 10 20H2 Build 19042.546 (KB4577063) for Insiders in the Beta and Release Preview Channels who are currently running Windows 10 October 2020 Update.

Today's update includes all of the fixes (and there were a lot!) that arrived with Build 19042.541 plus two additional fixes: