Generating Navmeshes

Yes it sounds like that will likely be fixed by the issue you linked. You can easily try it out. If you click the green tick mark in the main branch (or any other branch) on github, you’ll see a link for “plugin-package-combined”. Click the Details link next to it to download the ZIP file, and extract it into your engine plugins directory. You may want to uninstall the plugin from the Unreal Engine Marketplace first.