delete
What version of Cesium for Unreal are you using? Support for tilesets with translucency was added in v1.17, released at the beginning of September.
delete
Please go to Edit → Plugins → Geospatial in the Editor and confirm the plugin version displayed there.
delete
delete
Ok, thanks. You’re not specifying a custom material by any chance, are you?
Can you share a complete tileset? It’s difficult to reproduce the problem with just a glb.
Kevin
delete
delete
delete