In packaged builds exclusively, a square pattern can appear in the Landscape geometry normals, aligning with the edges of the tiles. Visualizing the GBufferA does not show much, as the variation is very slight. It does show up well in reflections, and a chrome Material shows it better.
This is sometimes more visible on Landscape Splines, and is distinct from the lines, chevrons, dots, and other artifacts on the spline-deformed area. Other times it appears across the entire landscape, and other times, only on the edges of some of the tiles. It has been reproduced on landscapes without splines, but only once.
Also tested on //UE5/Release-5.6/, CL: 45232827
This artifact did not reproduce on UE 5.5.
1. Download the Licensee's test project (see addl info URL)
2. Package the project
3. Open the packaged game
4. Run "toggledebugcamera"
5. Fly to where you can see the specular reflection of the skylight on the landscape
6. Observe a square pattern, aligning with the landscape tiles. It might only be visible in the area with the spline.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-351892 in the post.
| 0 |
| Component | UE - Graphics Tools - Terrain |
|---|---|
| Affects Versions | 5.6, 5.7 |
| Created | Oct 31, 2025 |
|---|---|
| Updated | Nov 4, 2025 |