I've met with strange Autorouter 0.8.10 behavior. It stops tracing very simple connections. Router needs just to make a direct line, but it can't do. There are no lines crossing the direct connection. It seems that a serious bug exists. As far as I remember, I haven't met with such a thing with previous versions. And the second strange thing of EasyEDA 6.2.46, that I can't trace such connections manually. Here is an example: