When pushing my WAR to a Liberty server in Bluemix using the IBM Bluemix tool (v1.0.3) it gets to 80% and never completes.
The logs look like it finished, but Eclipse doesn't acknowledge. I can push from the cf command line just fine.
I meet this issue from time to time too and yes it's usually due to the loggregator related issue. You can cancel the progress and the app status will usually get reflected correctly in the Eclipse server view.