I've had problems with connecting (in particular reconnecting) to irc.oftc.net using SSL since the 7.29 upgrade, and reading the new features I've done a bit of investigation. When connecting to irc.oftc.net you connect to one of a number of different servers (e.g. charm.oftc.net, larich.oftc.net, graviton.oftc.net) but if you say to trust the certificate next time you connect it stores the certificate hash in servers.ini against the server irc.oftc.net, so if you reconnect and get directed to a different server than last time you get the same prompt again (different server, different certificate - and so automatic reconnect is likely to fail).