Created Widgets are not displayed

Hi! I'm using Pentaho Community Edition 5.2.
When I create a new widget and save in the cde/widgets folder, it doesn't appear in the Widgets list of the left side panel (attached screens).
I tried to clear my browser cahe, refresh CDA cache, refresh the folders list, restart the server, etc.
What am i doing wrong?

Attached Images

• Files.jpg (19.8 KB)
• Widgets Panel.jpg (17.3 KB)