Hello Priscila! I have not seen this happen where the ConDoc Export simply does not work. Are you checking all of the drawings on to be exported?
If you see the exclamation point, that means that the model needs to be rendered… although you shouldn’t be seeing this in the scrapbook window. If you do see this you can just right click in the background and choose “render models on page”.
Let me know if this helps. Thanks!