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Of course I contacted him, he said it does not support ssh tunnels. He did know what they are. A tunnel is a way to connect to ports on a server "locally", being relayed via ssh. It's a special sort of connection. Becoming more and more common. Here's a sample explanation: http://blog.trackets.com/2014/05/17/ssh-tunnel-local-and-remote-port-forwarding-explained-with-examples.html
Unfortunately, working copy does not support ssh tunnels so not very useful. Our policy is to not expose non ssh ports to the internet. iRepoEditor (which uses svn) used to, but, maintenance stopped a year or two ago.
+1 for subversion. Would also pay for that.
Customer support service by UserEcho
That must be it then, seemed like it did not happen every time, but, I do use split view on my 12.9". So, maybe that is the key! Thanks!