Problem with the intro video - conflicting constraints

I am following the intro video for learning to model. I’m pretty experienced with Fusion but I want to start from scratch with Shapr.

In the example it says to draw four circles, select them by holding down Shift, add an Equals constraint, and then change the value of one circle to resize all the others. This doesn’t work - I get an error that says “This constraint would conflict with existing ones”.

I’m doing exactly what’s done in the video. What am I doing wrong? Screenshot attached, thanks for any pointers as this is extremely frustrating very early on.

I’ve recorded a video that shows what I’m talking about and shows it not allowing me to change the dimensions. I can’t attach it to this post because my account isn’t old enough, but it’s here: Dropbox

You’ve set 12mm to each circle, but have to set to only one. Dimension is a constraint. That’s why you have conflict between dimension and equal constraint.