Unreal Engine Issues

Material slot assignment incorrect after mesh reduction completely removes all triangles from a section

When mesh reduction results in a section becoming empty, the material slots are incorrectly assigned. e.g. if section 0 gets removed due to it having no triangles after reduction, then its material ...

World position is broken in post process material after TAAU

VRS doesn't respect the AdditionalShadingRatesSupported flag

D3D12 needs to check the flag D3D12_FEATURE_DATA_D3D12_OPTIONS6::AdditionalShadingRatesSupported and filter out VRS modes that aren't supported. This flag should be put into something like "GRHISupp ...

Inconsistent ListView entry sizes can prevent the ListView from being scrolled to the bottom

Since the contents of a ListView are virtualized, the ListView estimates the size of the scroll box's contents based on the on-screen elements. This can lead to some situations where DistanceFromBot ...

KismetFunctionLibrary: Equals and NotEquals (SoftObjectReference) not accessible in BP Editor

In blueprint graphs, the action list for soft object references of a Object subclass is incorrect. "Equal" spawns an incompatible node, while the expected "Equal (SoftObjectReference)" is missing. " ...

Route gamepad to second window setting is broken

The RemapControllerInput function call likely needs to be added back to the game viewport client as a fix.  ...

AbilityTask_NetworkSyncPoint can cause duplicate Gameplay Effect applications

A recent change to UAbilityTask_NetworkSyncPoint generates a second Prediction Key before broadcasting the OnSync delegate which may be preventing the server from removing the locally predicted GE ...

Conditional Gameplay Effect triggers a breakpoint in a networked client

It seems to be related to the removal tag requirements of the GE_Test1_2 gameplay effect, which does work but still gives the pending removes error. ...

After attach a component to a simulated component by socket miss collisions

If attaches a StaticMeshComponent with collision active to another actor with a SkeletalMeshComponent simulating physics by socket name the StaticMeshComponent miss collision for simulation. Chec ...

Level and Blueprint viewports have different behavior when calling FComponentVisualizerManager::HandleClick

User reports a difference in how component visualizer clicks are handled in editor vs blueprint viewports. This is likely not intentional, just a case of a difference in control flow in each viewpor ...