Hey @Codesto,
I’m having the same issue and similar discussions:
on the topic also did not resolve this problem.
I set up the IG business account (3 of them)
Connected them to my Facebook profile via Instagram
Set up the Meta Business Manager
Did these steps: clear cache and cookies for FB / make / IG then reconnect via the IG module FIRST. This error seems to come if the FB module were connected first - then the IG one would not extend authorization.
2 days have passed, and the IG pages are still not appearing in the field. I thank anyone for some help!