I am working on my Strategy for the "Next Best Account", all goes well till I add in the last filter for propensity. At this point when I save the tab just goes white and dies. I have to close and go again but just get the same results.... Also my expression builder button doesn't work.
As explaind in the lessons, when you save the strategy it is verified, the java code is generated, compiled and executed against the test data. The behavior you are experiencing is an indication of a hic-up in this process. My recommendation is to save the strategy more frequently, or in other words to take smaller steps. This typcially gives a better indication of when and where there is something wrong.
Potentially this may be a browser issue i certainly have not experienced this behaviour. What browser are you using? Just to clarify the problem occurs following addition of a Filter component. Also, when you mention expression editor "does not work", what exactl;y do you mean? IT does not appear, you canno validate the expression or.... Final question, what is the spec of your PC running the VM image?