I have a question

[M.Construction]

Sorry for any misunderstanding.
Another thing to keep in mind if the second floor is not attached to the first is to check to see how thick your siding is. I have found that in X4 (unlike some previous versions) that if the siding is less than 1/4" you will see a gap in 3d.
Glad to hear you found your solution. Joe has a great suggestion about having a look at the guidelines on how to ask a good question even for future search purposes for those that come after.
Have a great day.