Unreal Engine Issues

Non-public BlueprintCallable function calls do not compile in a nativized Blueprint.

A nativized Blueprint cannot currently invoke a non-public BlueprintCallable function that's defined in native C++ code without resulting in a C++ compile error. Example: APlayerController::PlayDyn ...

Stationary Spot Lights in Forward Rendering Incorrectly with PerVertex NonDirectional Translucency

Stationary Spot Lights in Forward Rendering cause artifacts when lighting transluceny set to Volumetric PerVertex NonDirectional. When the camera is moved around the object, the lit vertices flicker ...

Fail to save level with a Blueprint component containing User Data

Using Interpolative Animation Data into 'Make Dynamic Additive' gives warning "Trying to play a non-additive animation into a pose that is expected to be additive in anim instance"

Feeding Interpolative non-additive Data into Make Dynamic Additive gives a Warning "Trying to play a non-additive animation  into a pose that is expected to be additive in anim instance" AnimBluepr ...

Enabling Omni Directional Stereo Capture Breaks Draw Material to Render Target Functionality

Enabling ODS (omni directional stereo capture) in project breaks Draw Material to Render Target functionality. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6836133 ...

Component icon changes when undoing the adding of blueprint components

When the user adds two blueprint components to an actor blueprint, compiles the component blueprint, and then undoes adding one of them, the icon for the remaining component changes. This doesn't o ...

Crash When Trying to Find a Blueprint Class with Niagara Particles

Crash When Trying to Find a Blueprint Class with Niagara Particles Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6599617 ...

Ansel Wont Work if the Project is Still Open

Ansel wont work if the same project is still open while running the packaged version. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6599617 ...

Ribbon particles moving fast are inconsistent in initial position.

The fast-moving ribbon particle trail looks different on the server and client. It looks as though the client was drawing the previous frame. ...

SceneCapture2D Component Show Flags that are Modified in a Blueprint initially are Copied not Referenced

If you disable show flags in a SceneCapture2D component of a Blueprint, trying to re-enable them in the Blueprint will not update instances in a level. Anything that was left alone will change along ...