I am not a fan of Facebook API updates
Yep, always trying to find new ways to jump these restrictions. Btw, Facebook accepted the permissions to post on pages and groups on Fast, but not on Fast pro. I don't know why, the motivation it's ambiguous.
Of course! The latest versions are not connected to main app if you have it. So you can have a login on facebook and others on Fast.
Tried reaching you on the usual but current ROM fc. Go figure.
Looking for a fix.