Having this same issue. Also tried to downgrade to 2.5 but my main document won’t open. mimoLive crashes when I try to open my main doc in 2.5, I suspect this because it has some features from 2.6b1 in it. Can we please get a non-expired beta release back? I would rather not have to go digging through backups of my mimoLive docs to get my stream running again.
Whenever we set the beta expire date in mimoLive we think “pah, two month should be far enough” but then time passes by so quickly. We released a new beta today!
However, we recommend not to use any beta software in a production setup!