Unreal Engine Issues

Cooked content results in crash on launch of QAGame.exe

Seems to be an issue with how the cooker is calling the contents of TM-ShaderModels. ...

SetHitResultFromShapeAndFaceIndex crash

SetHitResultFromShapeAndFaceIndex calls  if(PxMaterial* PxMat = PShape->getMaterialFromInternalFaceIndex(FaceIndex)) { OutResult.PhysMaterial = FPhysxUserData::Get<UPhysicalMaterial>(PxMat->userD ...

PlayMontages can break after binding an actor with an AnimInstance inside a LevelSeuqence.

When an Animation Sequence is overridden by a LevelSequence, and later reverts to its original animation state, the AnimInstance fails to properly reinitialize. This prevents subsequent animation lo ...

ensure(PinHelpers::UnresolvedPins.Num() == 0); fails after undoing in the editor

The underlying cause is some edge case involving a math expression node, which does some perhaps naive things with a contained graph. ...

Crash when importing Alembic data with a large number of vertices if Merge Meshes is enabled.

Float Curve that is set as a local variable in an actor's function is garbage collected when in Standalone, causing a crash

If a Curve Float local variable is created for a function, it will be garbage collected when garbage collection occurs. This causes the process to crash due to an null pointer error whenever it is r ...

Grabbing a Destructible Mesh Child blueprint with a Phsyics Handle crashes the editor

Grabbing a Destructible Mesh Child blueprint with a Phsyics Handle crashes the editor during PIE. NOTE: This issue occurs whether or not simulate physics is active on the destructible mesh compone ...

Missing material bake output index entry for mesh(section)

Linux: Assertion at splash screen when trying to open UE4Editor

I ran into this while looking to verify [Link Removed] at CL 3355923. I logged the issue I was verifying the fix for last night and have not updated anything locally, so the "OpenGL 4.3 not supporte ...

Pasting a folder on the Outliner while LightMixer and ViewChanges windows are open/docked crashes the Editor

When both LightMixer and ViewChanges windows are open, pasting a folder into the Outliner crashes the editor. For more detailed steps, refer to the Steps To Reproduce section. This happens whenever ...