Hello Peter,

Chrome no longer supports applications such as Silverlight. K2 is currently in the process of developing a new platform to view anything that runs off of Silverlight in K2. There is no window set on when this will be implemented, but it is in development. Some aspects of K2 Designer, and as you have noticed looking at the view flow, will have issues when viewed in Chrome. 

Also please refer to this article from K2 on this issue. (NOTE: The workaround provided is no longer working, chrome does not support NPAPI plugins. Only workaround is to use other browsers such as IE or Firefox)

http://help.k2.com/kb001699

-Evan