Is there a way to prevent curvature adjustment from clicking when resizing?

Is there a way to prevent curvature adjustment from clicking when resizing when cutting an image through opacity?

When I click the yellow box for mask sizing, the red circle (curvature adjustment) is clicked.

Is there a way to make the size adjustment (yellow box) click smoothly?

There is a way to enlarge, but this makes it an environment in which editing is impossible because only a part of the edited video is viewed.