Hello all,
If you use the Ortho4XP Patch included with FlyTampa Sydney for X-Plane and keep getting an error in the build process, this topic explains the issue. in short, you MUST set "road_level" to 0. any other setting will cause a Triangle4XP error. once changing this value, the tile will build like normal and you can use Ortho4XP with FlyTampa Sydney.
additional notes: Bing has the best imagery source in the current state and is what i'd recommend.
https://forums.x-plane.org/index.php?/f ... le-sydney/