The instant of the prototype cannot be set to change immediately

I want to change the shape of the button to a small shape when dragging the screen.
First, the two buttons are variable designated as button1 and button2 under the name ‘button’.

The problem I face is that the change to option of the prototype does not work except for smart average, making it difficult to switch immediately. If anyone has gone through the same problem and solved it, I’d like to get advice.

Hey there, thanks for reaching out!

It’s hard to be sure what may be causing the issue from what you’ve described. Are you able to provide a link to your file, so we here in the community can take a closer look?