Weird issue with Cesium

[StathiasN]

I have manage to create my own xml for the spitfire using this form [https://jsbsim.sourceforge.net/aeromatic2.html ] to create the xmls for engine prop and plane itself, then i tweak the BOGEY points and the STRUCTURE points of p51d xml and refill the values of spitfire's xml and now it flies!! But i have an issue with Cesium. In a scene with just Unreal's GeroreferencingSystem everything is fine (unless it crash if i pull the gears up when i am on the ground), but when i add Cesium and i am taking off after a certain height the plane freezes and it travels fast to another direction almost like a weird rapid camera movement. The effect is the same like when you hit a building of Cesium. Any clues?

[gallonmate]

Does the cesium issue happen with just your spitfire or does it also happen with the other included aircraft, like the c172p or 787-8?

[StathiasN]

No with c172p is just fine but when i change to the native p51d file it doesn't even take off. My spitfire xml was cloned from this p51d but it flies, especially in an empty level it flies great

[gallonmate]

Try this solution found in another Cesium related issue #1268: "Tile Culling" (Outliner/Cesium World Terrain/TileCulling) must be deactivated, otherwise tiles are unloaded outside the field of view and the collision mesh is also "gone"."

[StathiasN]

In Tile Culling i have Enabled: Frustum Culling and Fog Culling,
the Enforce Culled Screen Space Error is the only disabled

So i disable them and it works!!!!! Thank you very much!!

One last question, if i use Google photorealistic Tiles then even with disabled these settings i get the same effect and this time when i hit play immediately

[gallonmate]

I'm not sure why the google tiles don't work. You can try asking in the Cesium github, I believe they have a github for their Unreal Plugin.

[StathiasN]

Unchecked the Start on Ground and worked!!
Although it starts on the ground visually