Problems reproducing use of deform tool in v10.3

I am doing like shown using v10.3, macos, but the setup distorts the figure when leaving setup mode. When increasing the size of the circle like here, after leaving setup mode, the shape is expanded.

My figure is imported as layer and vectorized inside harmony, does this maybe make any difference? Is there anything changed in current version compared to what you demonstrate here?

Have you made sure you have the deformation drawing selected? It’s easy to just have the drawing selected rather than the deformation layer!
Then apply the Copy Resting Position to Current, then leave setup.

When you click on the copy resting position button, make sure to have the deformation layer or module selected before doing so.

Here’s a clip to show you :

I hope this helps.