Unreal Engine Issues

Crash: Changing Material Property Overrides of Material Instance

When a material has a static bool parameter AND this is overridden in a material instance, Trying to change Blend Mode or Shading Model under the Material Property Overrides crashes the editor. Thi ...

Source control commandlets do not consistently check provider status for read only or checkout and instead rely on read only state of files

Replicated variables defined in Actor Component blueprints do not actually replicate

Replicated properties defined in an actor component blueprint are not being replicated because UActorComponent::GetLifetimeReplicatedProps isn't adding the blueprint properties to the OutLifetimePro ...

MaterialExpressionSubtract doesn't compile in plugins

Adding the following code to a plugin source file prevents the associated project from compiling in visual studio whereas this code will compile successfully inside of a class added directly to the ...

Particle disappears if it is using PSA_Velocity and setting custom time dilation 0

A licensee reported some of their particles disappear when setting the actor's custom time dilation 0. This seems to happen when a particle is using PSA_Velocity as Screen Alignment. This repros in ...

Landscapes do not Render when used with Lighting Scenarios on Mobile

Landscapes disappear using Lighting Scenarios when deployed to a mobile device. When playing in the editor using the mobile previewer, everything looks as expected. It only occurs when deployed to ...

ParticleCutout don't work when AlphaThreshold is 0

UParticleModuleRequired::PostEditChangeProperty use "AlphaThreshold > 0". So, if AlphaThreshold = 0, particlecutout don't work. ...

IPhonePackger re-signs app with old signature format that makes users get the warning popup on iOS

Apple forces developers to code sign an app using the latest code signature format and IPP needs to support it. a related link: [Link Removed] ...

Sharing TransitionRule of multiple AnimStateTransitionNode, when AnimBP is opened it becomes dirty

Sharing transition rule it will be Dirty when AnimBP opens. When AnimBP is open, "if(BoundGraph->GetOuter () != Node)" is true in FBlueprintEditorUtils::UpdateOutOfDateCompositeWithOuter, BoundGrap ...

Overridding a function with no return value in a ChildBP produces an event instead of a function

If you have a BP with a function that has no return value, then override that function in a ChildBP, it becomes an event and cannot be used like a normal function ...