There’s a pending fix for the live logs being missing: added back watchers for live logs by Pectojin · Pull Request #3555 · duplicati/duplicati · GitHub
It’s only affecting the last canary releases, but I expect next release will include it.
The update issue is talked about here but there doesn’t appear to be a solution yet: Updating to 2.0.4.5_beta_2018-11-28 - Error: Can't resolve alt.updates.duplicati.com