Crash Upon Sequencer Modification of Actor's Array Variable

Tools - Sequencer - Dec 7, 2018

If Sequencer event track modifies an Actor's Integer Variable Array that is exposed to Cinematics, the Editor will crash when the Stop button is pressed. ...

Cannot access data table columns by property name in a nativized build if the table's row type is set to be a user-defined structure.

Gameplay - Blueprint - Jan 22, 2019

UDataTable::FindTableProperty() will currently fail in a nativized build because the RowStruct is no longer a UDS in that context; instead it is converted to a native UScriptStruct type. However, th ...

Rotating constraints in PhAT rotates both reference frames

Physics - Feb 20, 2019

Rotating constraints in PhAT rotates both reference frames. This behavior was previously enabled by holding ALT while rotating, as indicated by an on screen message in PhAT, but has now become the d ...

RepLayout can hold onto hard references to owning objects, preventing them from being destroyed.

Networking - Feb 28, 2019

RepLayouts are associated with an Owning Object, which may be a Class, Function, or Struct. RepLayouts will only be cleaned up when the Owning Object is no longer valid. RepLayouts hold references t ...

Physics/Animation blending does not update collision

Physics - Apr 16, 2019

Setting bodies physics blend weight, blends an animation with physics simulation but does not update the collision bodies to match as is expected, instead the collision bodies are at their fully sim ...

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

Gameplay - Blueprint - Jun 17, 2019

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 ...

Unable to edit default values of TMap struct variable stored in an inherited component from the full blueprint editor

Gameplay - Blueprint Editor - Jun 29, 2017

When you have a struct variable that is part of a TMap which is stored in an inherited component, the struct is not editable in the full blueprint editor. It is editable in the data only blueprint e ...

[Landscape] only returns DefaultPhysicalMaterial when run in editor world

Tools - Landscape - Jun 19, 2018

Landscape will only return "DefaultPhysicalMaterial" when run in editor world. In game time it will return the proper physical material. Found in 4.19 CL# 4033788, 4.20 Preview 3 CL# 4135216 , 4.21 ...

Skeletal Mesh Attached Via Socket Rotates Collision in Unexpected Manner

Physics - Jun 22, 2018

Collision snaps to socket at an unexpected angle. See attached screenshot for breakdown on what is expected and unexpected. Description provided by user: the collider of the root bone is turned - ...

Event Dispatcher implementation called several times (number of bound refs increases every compile)

Gameplay - Jun 26, 2018

The number of calls to the Event Dispatcher increase each time the blueprint actor containing the reference is compiled. This issue was not present in 4.18.3 (CL-3832480) but is in 4.19.2 (CL-403378 ...