Techdows published a story that the latest Windows 10 20H2 KB4577063 update fixes the "Element not found" error in WSL 2.
Windows 10 20H2 KB4577063 fixes WSL's "Element not found" Error
Windows 10 September Cumulative Update KB4571756 released as part of Patch Tuesday has broken WSL 2 and produced an “Element not found” error. Till now uninstalling the update is the only remedy to make WSL work again, today, Microsoft released build 19042.541 (KB4577063) to beta and release Preview channels running Windows 10 October 2020 Update with a fix for the issue.
Windows 10 20H2 KB4577063 fixes WSL's "Element not found" Error
