Plan and section view fail in big project

We have drawn two buildings in separated file and insert them in the side plan as a linked block. This works fine, and we can work separately on every drawing. When we try to generate plan or section view in the side plan, the tow buildings aren’t drew.
Best regards, Simon

I have found this tread : Worksessions and Section / plan views

Hi Simon,
As the other thread mentions, it is necessary to insert files as “embed and linked” blocks in order that geometry is displayed correctly in plan views.

Hi Francesc,
Thank you for your answer.
Yes, it works.
Have a nice day,