OpenShift Explorer: empty at start

When I close Eclipse with OpenShift Explorer not visible (by selecting another view in the same area of the workbench, or by switching another perspective), after I reopen Eclipse, and select OpenShift Explorer. I push 'Connect' button and can select for authenticating any available connection, it happens successfully, but the view remains empty. After I close/reopen OpenShift Explorer, it is opened populated with connections.

I have to add that it is not 100% reproducible. What is interesting, when starting it in the debugger, I reproduce it around 80%, while in normal run the probability is very low if do it leisurely, but can be increased to 50% if take the task with some dedication and find the right moment (very soon after the window opens) to select the explorer.