Not able to use "from collect" by guided editor in kie workbench for 6.1.0.final

When try to use "from collect" ,whole interface beneath the from collect including it disappear in "Edit" Tag.But code is visible through  Source tag
Showing the interface using from collect
![edittag](https://cloud.githubusercontent.com/assets/8101328/4287206/f5863c02-3d9f-11e4-8571-7bd637ebc897.PNG)
Source code of rule
![sourcetagfromcollect](https://cloud.githubusercontent.com/assets/8101328/4287207/f5875a24-3d9f-11e4-930a-d9ba7576cfd3.PNG)