Fusion 360 Problems

Can someone Help with this bug. I have a C channel and I have used the modify add-in on it. But every time I try to move it The black dots do not move with the component.
Does someone know how I fix this.

Have you made sure to install the add-in correctly?
Downloard it here
And follow the written tutorial found here.

I reinstalled the add-in but it still did not work. The Black dots will stay put while the component moves. It only seems to happen when I use the Add-in.

Make sure that you are moving the entire c-channel component instead of just the nested body.