I have created a simple FB webhook app and have subscribed to trigger on feed activity. I successfully added and tested the user subscription, and clicking the webhook test button test works perfectly.
I have fulfilled all requirements and it is now live, but it does not work on my live FB feed.
I saw a post saying that I needed to obtain "pages_manage_metadata" and "pages_show_list" permissions, and I have been approved for that, but it still won't work despite being in live mode.
What am I missing?