Unreal Engine Issues

Blueprint properties of replicated subobjects don't replicate by default

The base implementation of UObject::GetLifetimeReplicatedProperties doesn't check to see if its class is a blueprint-generated class and add its properties, like UActorComponent::GetLifetimeReplicat ...

Enabling "Edit Layers" results in a loss of precision when importing an heightmap

Importing an heightmap while having Edit Layers enabled results in a loss of precision: [Image Removed] ...

Instance components duplicated via the in world component editor are destroyed on level reload

Instance components aren't flagged correctly and are removed on load as a result. ...

Remove reference to editor assets in cooked build from landscape visibility layer

As soon as the visibility tool is used, we're adding references to the  "/Engine/EditorLandscapeResources/DataLayer" asset from landscape components. If the user decides to cook without editor data ...

Editor will crash during shutdown while a global Find-in-Blueprint tab is open and indexing is active.

The editor will crash during shutdown if Blueprints are actively being indexed in the background. ...

If "Update Position Eash Frame" of "Skel Vert/Surf Location" is enabled, the particle continues to rotate.

It seems to have occurred since UE4.23, and the cause was the following part of "ParticleModules_Location.cpp".//From UE4.23 if (bOrientMeshEmitters) { //We have the mesh oriented to the normal o ...

Transform node which transforms a vector from mesh particle space to world space in vertex shader doesn't work on ue4.25

Transform node which transforms vector from mesh particle space to world space in vertex shader always returns 0. In ue4.24, it works fine. This behavior has been changed in CL#12558699. Removing f ...

Space Bar pressed event not received in Windowed mode

UIScaleCurve float-point value in BaseEngine.ini lacks precision

The screenshots below display 1920x1080pixel widget button. First one with Default DPIScaleCurve shows extra borders on the right and bottom. Next one with more precision shows no extra boundary. [ ...

Target Gamma setting has no effect when using SceneCaptureActor which has no contribution from PostProcessInput0

Expected result is that the Target Gamma slider would apply that calculation to what's being written to it.  RT_PostProcess is a RTF RGBA8_SRGB render target being written to by a SceneCapture Acto ...