Unreal Engine Issues

Apple TV - Cloudkit - Infinite loop

When cloudkit is enabled, the regular Apple TV may get stuck in an infinite loop in FOnlineUserCloudInterfaceIOS::OnReadUserCloudFileBegin(): while (CloudFile && CloudFile->AsyncState == EOnlineAsy ...

4.23 Preview crashes with command line arguement -AutomatedMapBuildUseSCC = False

Using an automated script in command line arguments to build project map causes a crash. Note: that it will not crash when 'UseSCC=false' is omitted, but it will not build the map either. Screen gr ...

Possessing and Unpossessing a Pawn when using NetCulling causes the Client to lock up

In this test bench, they are using a APawn with a custom replicated Movement Component rather than using a ACharacter and they are getting a different result that ends up in a permanent softlock of ...

FAnimNode_RigidBody::bForceDisableCollisionBetweenConstraintBodies modifies asset collision table

The 'Force Disable Collision Between Constraint Bodies' rigid body node option modifies the collision table of the physics asset its used with. It is expected that this option works as an override a ...

DetachmentRules is not applied when WhenFinished of AttachTrack is set to RestoreState.

Purpose: Create a parent-child relationship using the “Attach Track” After that, I want to release Attach in the middle of the sequence and leave the child. Set "When Finished" of "Attach Track" to ...

Sleep state not replicating properly

Objects' sleep states are not being properly replicated to the client. While it cant seem to be reliably triggered, occasionally the client will receive a constant stream of sleep events, until the ...

Deleting track categories needs to be localized

Interpolators of Particle Dynamic Parameters Need "nointerpolation".

Regardless Niagara or Cascade, dynamic parameters for particles are passed to pixel shaders from vertex shaders via InterpolantsVSToPS. It can cause a precision error on some materials, for example ...

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 ...

Severe ghosting on animated objects when camera stops moving in sequences when using path tracer

Pixels seem to stop updating in the path tracer when a camera stops moving in sequence. Old color values from objects that have moved seem to still affect pixels they should not.  ...