Apparently a bug(Gannt chart)

[Yayadk]

Hi Daniel.
Tnx for a great whole day in Aarhus Denmark. Loved it
We have spoken and i have shown you a bug while using the Gantt graph of David.
So here is how do i get it:

• i have downloaded the pbi report of david with his example of the gantt graph. (1.png)
• 
• Clicking on the Edit on the top right corner (2.png)
• 
• Removing one of the fields (no matter whice one). i removed Task (3.png)
• 
• The fields mapping windows comes up (as expected) asking for some other files in the Task property(4.png)
• 
• I add the same filed again (task). Deneb knows right away to map it. clicking on Apply Mapping (5.png)
• 
• The graph is not there anymore and cannot be fixed again in any way.(6.png)
  

Hope you will have time to fix this.
Let me know.

Tnx in advance
Yair