A WorldPartition map used as a level instance that's set to standalone mode doesn't load its actors in the editor.
1. Create a Blank Game project
2. Create a new level, select "Empty Open World"
3. Add a Cube, set the position to (0,0,0) and the scale to (5,5,5) so it's easier to see
4. Save the level as "LevelInstanceWorld"
5. Create a new level, select "Open World"
6. Drag the "LevelInstanceWorld" into the map
7. Observe that the cube is visible
8. In the level instance actor's detail change the property "Level Bheavior" from "Embedded" to "Standalone"
9. Observe that the cube is visible
10. Save the map and reload it
11. Observe that the cube is no longer visible
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-356455 in the post.
| 0 |
| Component | UE - World Creation - Worldbuilding Tools - Level Instances |
|---|---|
| Affects Versions | 5.7 |
| Target Fix | 5.8 |
| Created | Dec 2, 2025 |
|---|---|
| Updated | Dec 2, 2025 |