Unreal Engine Issues

Crash when duplicating component with Instanced property initialized with CreateDefaultSubobject

An editor crash can be observed when copy-pasting an actor with an actor component with an instanced object property when set to a non-default value. Detailed steps to reproduce are provided below. ...

empty default value for a blueprint member variable in a custom k2node

User is attempting to find a blueprint member variable's default value in their implementation of UK2Node::NotifyPinConnectionListChanged(). but the expected value in FBPVariableDescription is empty ...

Mass entities initializing fragments on the incorrect archetypes due to shared CreationContext

UMassAgentSubsystem::HandlePendingInitialization creates a single FEntityCreationContext that is reused across all iterations of the PendingAgentEntities loop. When SpawnEntities eventually calls in ...

BinaryConfig cannot be created in packaging if there is a space in the file path name.

Error log is output when including spaces when packaging binary configurations. The following log contains the string "Test Test" with spaces in the file path. ERROR: Failed to copy D:\Projects\Te ...

Crash in Middle of PIE with Level sequences and MRQ running

Repro Rate: 5/5 Tested this a few times and the crash seems to come in at different intervals, some had the prestreaming almost finished, then would crash. Working on a video to show crash to add ...

Material functions should be able to output the same data as it can accept as inputs

Material Functions cannot output Texture Objects or Booleans. This seems to be because the Material Editor believes that the outputs are Floats, and forbid connections to inputs that take Textures ...

Selecting multiple platforms to package in UFE may result in not all of the selected platforms being packaged

A user stated that when trying to use UFE to package for WindowsNoEditor, WindowsServer, LinuxNoEditor, and LinuxServer, not all of the platforms were actually being packaged. LinuxNoEditor was bein ...

Unexpected behavior with Broken Constraint and Physics Blend Weight

Looks like the position of the bone according to the animation is still being accounted for somehow, because the collision seems fine (when using pxvis collision). ...

When the AppleProRes plugin is enabled, the playback speed of the video changes in the MediaTrack sequencer.

Complex Collision as Simple causes odd Overlap behavior

When triggering overlap events with a Static Mesh using Complex Collision as Simple, the overlap Begin and End events will be triggered rapidly in sequence. Changing to Default collision will fix t ...