"Report item not linked to a dataset"...but it is

Question

I am getting this error in the expression editor for a chart control.

Category - Fields
Item -
'Fields selection frame' is where I see the error

The chart IS linked to a dataset though and it works too; how else would the chart be populated with meangingful data when I run it? :)

Does anyone know why this occurs?

[pic not supplied due to corp firewall]

Answer 1

Looks like a bug in SSRS i.e. the fact that it works anyway but displays an error in the expression editor