Problems with bounding box

Hi,

I created a bounding box for each view of mi product (snapaback) in each product builder of these views (see image1) , following the instructions in the video and this link but the restrictions of these bounding box are not shown in any of the product views (see image 2).

My question is what am I doing wrong?

The configuration of for example a product builder view (front) you can see in the image 3 and the individual settings of this product in the image 4.

Best regards,

Juan