It was the ticket I mentioned further up where I discussed trying to find a solution (I don’t have a Jira ticket in for this, not sure how/where I would do that)
Just to clarify the HTTP vs HTTPS was when I was using IIS with ACF, and to be honest it was a few years ago when I first set up the platform and I am not 100% sure this was the case, I just seem to remember it was.