Niagara Fluids Grid3D_Gas_Explosion causes a crash

UE - Niagara - May 4, 2022

Placing Grid3D_Gas_Explosion into a level then packaging the level for windows will crash the packaged project. The package will give an error that it crashed while loading and quit.  This does not ...

[AI] Behavior Tree gets stuck in an infinite loop if a Conditional Loop decorator cannot find a child node to run

UE - AI - BehaviorTree - May 4, 2022

Behavior Tree can be stuck in an infinite loop with a Conditional Loop that cannot run any child nodes. Exception thrown at 0x00007FFC0E405F65 (UnrealEditor-AIModule.dll) in UnrealEditor.exe: 0xC ...

Post Process Animation Blueprint triggering a crash when compiled

UE - Anim - Runtime - May 4, 2022

User Description: "Crash happens only while trying to compile parent character's blueprint which contains no specified skeletal mesh. Child character containing mesh that uses mentioned post process ...

Get Constraint Force node always returns a magnitude zero vector

UE - Simulation - Physics - Solver - May 4, 2022

Get Constraint Force node always returns a magnitude zero vector. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and was able to get the constraint force, it is a regression. ...

State Machine Variable Type Icons Display in the Color White

UE - Anim - Runtime - May 4, 2022

Occurs 5/5 times State machine variable type icons all display in the color white.  Regression does occur - tested in //UE4/Release-4.27.2 EGL Live @ CL18319896 ...

[AI] StateTree assets need to be compiled again when restarting the editor despite no changes.

UE - AI - StateTree - May 4, 2022

StateTree assets show that there are pending changes to compile when reloading the editor. This can also mean that state trees do not run logic for AI as noted in linked UDN thread. ...

[AI] GameplayDebugger does not show labels for EQS in editor.

UE - AI - Debugging - May 4, 2022

Gameplay Debugger is not drawing the labels associated with EQS query points inside the level. It does not show the scores, winner, or failed test (if applicable). ...

[Source Effect Chain][Blueprint] -Add Source Effect To Preset Chain Has No Effect

UE - Audio - May 4, 2022

Add Sound Effect to Preset Chain has no effect on the Source Effect Chain. [Link Removed] ...

Game Features plugin does not make plugin folder

UE - Gameplay - May 3, 2022

The Game Features plugin does not create a Plugins or a GameFeatures folder in the project location. This prevents a user from making a new Game Features (Content Only) and a Game Features (With C++ ...

Assertion failed: (Index >= 0) & (Index < ArrayNum) when importing large Alembic file

UE - Editor - Content Pipeline - Datasmith - Importer - May 3, 2022

Regression testing done on //UE4/Release-4.27.2 CL-18427296 and this issue did occur. [Link Removed] [Link Removed] Below is snips of customers description and proposed workaround:Importing alembi ...