Unreal Engine Issues

Return values are not saved in blueprint functions

Blueprint function return nodes don't save any settings applied directly to the return node itself. Regression: Yes - this behavior does not occur in 4.16.3 (CL 3561208) ...

Opening the color picker causes values to change

Opening the Color Picker for some color variables causes them to change each time the color picker is opened. Tested with: Light Color and the Albedo variable on ExponentialHeightFog Does NOT occur ...

Progress Percent is removed from UMG Progress Bar when Transform Shear value is changed

Modifying the Shear values on a Progress Bar in a Widget Blueprint cause it to lose its Fill Color and set Progress. This is a regression from 4.20.3 (CL-4369336). Reproes with -vulkan on both Linux ...

CustomPrimitiveData is not updated for Niagara if it's paused on DX12

[Ensure] LoadStreamingLevel and UnloadStreamingLevel are called at the same tick

There is no particular error. Developer can ignore it. ...

Deleting folders in the Content Browser will not delete them permanently from Project Folder

If you delete a folder from the Content browser that is in the Starter content, The folder will reappear if you reopen the project. The only way to delete them would be from Windows Explorer. I als ...

Screen Space Ambient Occlusion Artifacts

Flickering occurs when using the Post Process Ambient Occlusion (Screen Space AO). This is more noticeable when using stronger values entered into the AO fields. I checked these settings in both 4 ...

Setting Tick Interval in GameMode to non-zero causes the game to freeze on pause

If Tick Interval is set to something non-zero, the game will freeze when Set Game Paused is called. If not manually closed through the Task Manager, this will lead to an out of memory crash. This ...

memory leak from incorrect PhysX shape ref counting

PxShapes are created with a ref count of 1, and it is up to the caller to decrement this once the shape has been attached to an actor. There are a handful of places in the code in which this doesn' ...

Crash during save level and successive load level

Changing the Max LODLevel on a landscape causes a crash in content examples. ...