Why do I see void rooms on our ESX files?

Void rooms in an ESX sketch are a by product of rooms or areas that our system sketches without having a camera or a 360 image in it. A really good example of this are areas that are supposed to be a part of the overall sketch layout, but do not have any 360 images documenting them..

By default our system labels them as void rooms for you to replace, remove or rename later on. See example:

The areas highlighted are areas that are almost impossible to take a 360 picture of. However, because these areas are part of the overall sketch, these are taken into account and marked instead as void rooms in the ESX file.