Airport elements not drawing

Hello, my question is that, despite are inside the airport radius, can’t draw painted lines or aprons. Tere aren’t any airfield near. the coordinates are: lat 40.911905 / long -111.587636 (Utah, East Canyon State Park). The airfield is 15UT and the radius 20 Km. To the north, can reach the limit without problem. What could happen? Any idea?
Thanks in advance.

Have you set a polygon with texture to where you want to draw lines? Polygons always draw over aprons and lines.

Hi, could you elaborate on what you mean by “can’t draw painted lines or aprons”? What happens when you try to draw painted lines and aprons?

Giving more information will help the community diagnose your issue.

Simply: not apron or painted line can be applied to the scenery, despite it is inside the airport radius. Now it was solved by setting an helipad as new aerodrome.
Thanks for your answer.