Hey,
I faced the same problem and started debbuging the code, found the line which causes the error and "corrected" it to get it work.
In the Agent (1. View Manager | …) go to the sub setViewColumnAttributes, find the lines
While numChildren > 0<br/>
Set nextChild = child.NextSibling <br/>
and modify them like this:
While numChildren > 0<br/>
If numChildren > 1 Then<br/>
Set nextChild = child.NextSibling <br/>
End If<br/>
This solved the problem for me!