"View on Cloud" URL

From the Windows desk top client (version 6.1.8), when I right click on a library and select “View on Cloud”, it switches to my browser but I get a 404. I think the 404 comes from seahub. The offending URL is
I deploy my seafile at /cloud so it would appear that when the client tried to figure out the URL for web access, it got a little confused. Is there an easy fix for this?

Otherwise the client/server is working perfectly. All my libraries are sync’ed and I can access them either from the client or the web interface.

Other details: My server is version 6.3.1 under linux and using apache. I’m configured for https. My client is running under windows 10.