Fbx Importer: Make sure the blendshape curve keys have the correct tangent scale

UE - Anim - Oct 4, 2021

The tangent of the blendshape curve seam to have the wrong scale (but correct direction) from this UDN. https://udn.unrealengine.com/s/question/0D54z000079J03OCAS/skip-compressing-anims-and-buildin ...

Display Blueprint Added Components on subobjects with meta = (ShowInnerProperties)

UE - Gameplay - Blueprint Editor - Sep 28, 2021

Right now only native subobjects are displayed in the details panel with meta = (ShowInnerProperties) is set. Child Actor Components are an example of this, where if the child actor you have added h ...

Deleting the first instanced subobject entry from a Blueprint map or set variable's default value can result in an editor crash.

UE - Gameplay - Blueprint Compiler - Sep 27, 2021

Deleting the first instanced subobject entry from a default value for a map or set variable can result in accessing an incorrect subobject for the element's value during reinstancing, which can then ...

iPhonePackager code signature not supported by iOS 15

UE - Platform - Mobile - Sep 27, 2021

Crash editor after editing property of TwoBoneIK node

UE - Anim - Rigging - Sep 22, 2021

Crashes after editing properties of TwoBoneIK node. If following the reproduction steps, the binding of NodePropertyDelegateHandle will not be removed, causing illegal access on the second editing. ...

The process may not return to the root node after the Wait Task is completed.

UE - AI - BehaviorTree - Sep 14, 2021

If the Wait Task is completed for the first frame, it may not return to the root node even after Finish. This can be avoided by increasing the wait time of the Wait Task (see CaseOK.mp4). When this ...

Saving a level with a sequence open can affect a component's velocity

UE - Anim - Sequencer - Sep 13, 2021

It looks like a component will have a velocity calculated and saved when animated by a sequence during a level save.  ...

Pasting timeline components into another actor and then choosing "cancel" on fix self context function references results in a broken state

UE - Gameplay - Sep 13, 2021

upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue was reproduced. Regression - No ...

APlayerController::FlushPressedKeys is (incorrectly?) called when the client viewport loses focus.

UE - Gameplay - Input - Sep 3, 2021

When focus changes an IE_Released event occurs for the W key (your character stops moving) due to UGameViewportClient::LostFocus calling APlayerController::FlushPressedKeys. Because of the R key pre ...

Component Created in C++ is destroyed before BeginPlay

UE - Gameplay - Components - Sep 3, 2021

Tracking a potential issue where components in C++ are being "lost" prior to BeginPlay. Renaming the reference variable seems to work around the issue, but the cause is currently unknown/needs more ...