When I import a dwg the program has difficulty in, for example, climbing a wall, it gets stuck, I select the rectangle but it doesn’t go up the wall. As soon as it matters I fall apart but it still doesn’t work, do I have to do anything else
I’m sorry, but I really don’t know what you mean by this.
You might mean, for example, that you select a rectangle in the .skp file and it won’t pushpull the full height of the wall.
Upload your dwg and skp file and someone can have a look to try to understand your problem better.