Bug: Downloading updates: stays on 0% forever

Many people have seen this problem. No explanation for why it happens sometimes for some people. Hopefully log file will help you troubleshoot it. See forum.

Software version: 4.0b Beta 3.
Reported by Rosie Perera.
Forum link: https://logos.vanillacommunities.com/forums/t/10220.aspx
Status: confirmed