Sidebar Progress/Completion indicator removal via CSS coding no longer working

It maybe pure coincidence - but it looks like the introduction of the new Themes has broken the coding workaround that removed the Progress/Sidebar indicators as discussed here

https://community.articulate.com/discussions/rise-360/want-to-hide-side-menu-progress-completion-indicators

and here

https://community.articulate.com/discussions/rise-360/i-thought-i-would-share-a-solution-to-removing-the-progress-indicator-on-lessons-in-rise

Anyone any suggestions - beyond disabling the sidebar altogether - I am surprised something users have been requesting for several years hasn't been cared for, although I am sure there are bigger fish to fry