Unreal Engine Issues

GPU / D3d Crash while editing Landscapes

From licensee: I've been experiencing consistent GPU crashes when tying to edit landscapes since updating to UE5.1. It seems to be exclusively an issue with DirectX 12 (SM5 & SM6). I have no pro ...

Large brush sizes causes hitching in Landscape Sculpt mode

In my case I used the erosion brush and smooth brushes.  Not a regression checked in Version: 5.1.0-23058290+++UE5+Release-5.1 ...

Small seams in a rescaled Landscape between all the Landscape Components

This is a regression. Tested in //UE5/Release-5.0 CL20979098 Small seams in a rescaled Landscape between all the Landscape Components. This only happens when scaling specifically to this value. ...

Landscape has a seam when scale is set to a decimal

Regression: Tested in UE5/Release-5.0 at CL 20979098, this issue does occur so it is not a regression. This issue occurs if the scale set for the landscape has a decimal value that is not 0.5. Sett ...

Cannot Delete Landscape with World Partition enabled

If you delete all the LandscapeStreamingProxies under the landscape object the parent landscape object can be deleted. Not a regression checked in Version: 5.1.0-23058290+++UE5+Release-5.1 ...

Importing a 16x16km landscape at 0.5m resolution crashes Unreal (not enough VRAM)

Shadows render incorrectly on the border of two landscapes

Regression: Tested in UE5/Release-5.0, issue does not occur so regression is yes This issue appears on whichever side of the first landscape the second landscape is adjacent to. Moving the Directio ...

Landscape Layer Masks can't be imported

Repro Rate: 3/3 This is a live issue that has been tested to occur in //UE5/Release-5.1 at CL 23058290. This is also confirmed to not be a regression since this issue also occurs in //UE5/Release- ...

Assertion when using multiple material layer instances in a landscape material

AMD GPU crash with "Video memory has been exhausted" error when increasing the World Partition world and using Water Body Ocean

Current steps describe the problem related to "Video memory has been exhausted (#### MB over budget). Expect extremely poor performance" on the AMD video card. In this case, the steps cause the GPU ...