Unreal Engine Issues

Blueprint inherited from StaticMeshActor will fail to compile if StaticMesh is NULL

Crash editor when open the level sequencer after updated 4.20

When migrating from the version before 4.20 to the version after 4.20, opening the level sequencer will crash. I think that there is a problem with conversion from SnapTimeInterval (FixedFrameInterv ...

Crash when executing Rename Asset or Duplicate Asset and other functions in Scripted Actions

In Scripted Actions, if you execute a function after using Rename Asset or Duplicate Asset, it will crash. If you do not execute the function it will not crash. ...

Particle memory can be corrupted leading to a crash

Material Artifacts When Using World Position and Pixel Normal Together

When using "World Position" and "Pixel Normal" nodes together. it causes artifacts in the material. In 4.19 CL# 4033788 this did not occur with the same material setup. Found in 4.20 CL# 4369336, 4 ...

Child Actor Audio Volume Makes UE4 Crash

When creating an actor, adding a child actor component to it, and setting that child to a Audio Volume the Editor will crash if you try to change any of the Audio Volume settings. ...

Impossible to save assets after change in redirectors

One of our licensees pointed out this problem. I've tried all the common redirector problems (write / read permission, multiple instances of the editor, renaming the assets, running the commandle ...

Remote 2 fails to launch on iPad Pro 11inch

Unreal Remote 2 is crashing on launch with new ipads.  ...

Foliage meshes doesn't follow the geometry planted on

Crash on Linux and Windows with Vulkan when adding Atmospheric Fog to a Level

Adding an instance of Atmospheric Fog to a Level causes the Editor to crash on both Linux and Windows when using Vulkan. There is a different callstack when SteamVR is enabled on Linux which is also ...