I have found a problem in the plan view (taskboard user) in the eclipse client:

The taskboard view shows only horizontal lines if I execute following steps:

1) open a plan in the eclipse client  (type sprint backlog)
2) switch to taskboard user view
3) click collapse all button on top.
4) when I expanding any section, only horizontal blue lines instead of the work items are displayed

When I click expand all, then the work items are displayed correct. Both, client and Server are Version 4. If I try to open the plan with Eclipse Client 3, everything works fine.