Thank you for the help - it did start working again, but only intermittently, and unfortunately it seems to have been down for the last week+. Is there an easier way to check whether the relays are working than just trying to start stream and waiting?
Apologies for the necro, but I'm finding the same issue with the twitch afrihost relays where you can stream to them but it never gets sent on to twitch. Any chance of a fix?