wcdf files not shown on PUC (5.0.1 EE Mac OS.X)

Hi, my friends.

I'm running Pentaho 5.0.1 Enterprise version,
and tried to install C-Tool 5.0 that was released in the mid of Nov.

I first added Marketplace into my PUC,
and install CDE and CDA. (CDF was already installed, built-in.)

Then, CDE dashboard editor did not show up on File-New,
so I need to modify importExport.xml file in "pentaho/server/biserver-ee/pentaho-solutions/system"
(here's the detail: https://github.com/pentaho/pentaho-p...1ac9b1573873a5 )

After that, I was able to open the dashboard editor, and save my progress.
However, in PUC's browser, .wcdf file is not showing up anywhere, and only .cdfde showed up on my project folder.
So that, I cannot open any of dashboard file which I have been working on,
or open any sample dashboard that I downloaded online.

Anybody could share your thoughts on this issue? or experiencing similar problem?
Your help will be tremendous help to me, of course.

Thanks
Isaac