Application Switching is broken in DP4

[wwwjfy]

Application Switching doesn't work well for multiple desktops.

For the same app, when switched to another desktop, the focused window is still the one in the previous desktop. This drives me crazy that I have to command-` some times to make the current window active.

Am I alone or you all meet the same problem?

 

[wwwjfy]

Had to downgraded to DP3 to "solve" this problem.