Hi Mike, thank you for your instruction. I attempted to report it to LibVNC Github but it is difficult to point exactly where the issue is with them. It's a bit confusing with logs from Guacamole about LibVNC :) . I will try to write a better post to them.
On a follow up question, please help me (Just on high level, just need directions, I can Google the rest), how do you "Installing the absolute latest libvncclient (part of libvncserver), rebuilding guacamole-server" ? -- Sent from: http://apache-guacamole-incubating-users.2363388.n4.nabble.com/