It works for Events and Groups, but not for the Forum page for some reason. It’s also strange that for that page only, setting Astra theme’s page settings to “no sidebar” doesn’t work. I wonder if it’s something with bbPress?
OK, I switched the slug of my forum to “forums” and it seems to have fixed the issue. Not sure if maybe It was originally plural and I switched it to “forum” and that messed things up. Anyway, it’s resolved by switching it to the plural form.
Glad to hear it… the nuance of slugs.