I am not sure why this is happening. Can you please try uninstalling Blueprint and then installing it again?
You can uninstall plugins by going to Help->Software Updates->Manage Configuration.
Have you tried Blueprint in Flex Builder 3? Does it work for you there?
We sometimes have problems if you install the plugin versions of FB4, but we haven't been experiencing problems with the standalone application.
Correction, it works.
It took me some time to figure out how.
The problem is usability.
If I maximize the editor, an icon is displayed at the bottom, and if I click on it, then I get the blank screen.
For everyone with the same problem, you need to select some text and then press on the icon at the top of the screen.
I have the same problem under Windows XP and Flash Builder 4 beta 2.
I'm getting a blank popup with no possibility of typing anything in and no blue icon to initiate a search.
Same thing if I manually open up the Blueprint view from the other views selector. It just displays a blank view with the word "Blueprint" in default text and no search bar.
Oh and once I close the popup, I can't get it showing again.
The same is here.
Can't enter a text.
Flash Builder 4 beta 2
default browser Firefox 3.5.3
after a click on the icon, I see blank field(without icon).
The HTML source of the field is:
error log from Flash Builder
Configuration Details from Flash Builder