After updating Note 4 to 5.1.1 knox is not working. How can I get it working again?

[AC Question]

After updating Note 4 to 5.1.1 knox is not working.

I had knox container working fine. After the update to 5.1.1 knox is now not working.
When I open it, the screen turns black. I can still open the notification pane, statis bar is visibla.
When I click on the knox button on the notification pane, knox closes (the icon on the status bar dissappears) but the screen stays black.
And the only way to get theough this is to restart the phone.

 

[nirmv]

I have the same problem. Following.

 

[nirmv]

I solved it by uninstalling and reinstalling knox.