Hi John, thanks for the quick reply 
Ok, so, that would mean that the behaviour I’m seeing with the action is expected but not with the rule. Are you then confirming I shouldn’t be getting the error interaction_required when doing the silent auth after redirecting with the rule?
I’ve created the rule in the simplest way and, as mentioned, I’m doing the silent auth in the exact same way for both scenarios (redirecting with action and redirecting with rule).
Then, what is wrong in my config?