This site is being deprecated.
Please see the official X‑Plane Support page for help.
Have you followed the instruction from the Ortho4XP pack regarding the prioritization of your Ortho scenery?
There are articles and videos on how to order the loading of sceneries, e.g.:
Ortho sceneries should typically be placed at the bottom of the list, while airport objects should be at the top. The order is managed by the "scenery_packs.ini" file.
This site is no longer being actively maintained.