bubble plot size component not calculating value

I am unable to get the bubble plot to calculate a value for the size component, returns zero and shows all series data as the same size

What version of Skuid are you running?

I’m running 11.0.5 and not having any problems.

I’ve got a data source that has three numeric measures . (A list of countries GDP, Life Expectancy and Population). Here is the finished product:

Here is the key setup screen.

What does yours look like?

I am having the same issue. does each component (x, y, size) need to be a different measure?
I am attempting the below snip, however have also tested max/min/average/sum minutes and duration with no success, all return a size of 0.