Kibana 4.5 Discover Screen blank (no searchbar, fieldlist, metrics)

Today Kibana 4.5.1 changed his default discover page to an white blankscreen with only the kibana logo and the different tabs.

I can open visualize and browse my dashboard as well, only the discovery tab stays plain white.

No logs, no errors, nothing.

Maybe somebody know why or can help me in that case.

Solved. A curl -XDELETE "http://localhost:9200/.kibana" did it for me.