I'm using the full version of Cartoon Animator 5, I'm following a tutorial by David Arandle, I am using Human_Dummy_F.ctTBActor, everything works normally except the wireframe of the mesh subdivision which doesn't show despite making the correct steps.
The problem occurs with all characters including the ones included in the free resources.

I have attached a short video of the situation and you can see that the selection boxes remain greyed out until I select a bone. Then they are available but still no grid appears.

Please take a look at the video I've attached showing the issue.