[Solved] full width forum
I'm assuming that show/hide of forum sidebar is determined by is_active_sidebar value. where is this coming from?
I don't have any of the sidebars selected. yet forum sidebar is showing. the template for the page is set to default, which with the theme i'm using is the full width template.
wpForo cannot have an option for this. This comes from your theme Page Templates. If your theme has a full width template you can set it, if not you should use visual composers or something like that. wpForo has no chance to affect your theme page templates.
It's sidebar cache. You should add some widget in wpForo sidebar, save it, then delete it again. This will reset sidebar cache and you'll get full width. That's it.