window display problem 2d artlantis 6.5

[EAugugliaro]

Good morning
I have a problem with the 2d window display of artlantis 6.5: I can't see the classic 2d plan of the project imported from archicad but the program displays in that window a 3d view from above in which you can't see anything, as from attachment. I can also not find an option within the program itself connected to this problem. Is someone aware of this inconvenience and how to solve it? Thank you very much in advance.

 

[m.arch.]

Good evening, it's a little dated post, but someone might need the solution. I came across the same "problem" after upgrading to version 6.5. was just a visualization fact:
--> icon on top left
--»preferences
-- > opengl display mode
--> set hidden lines