Unreal Engine Issues

UE Editor 5.3 - Level Viewport - Unlocalized Issues

How to Reproduce: 1. Open Editor 5.3 (ReltestB) in Localized version (culture= ) 2. Click on the "show" icon in the level viewport 3. Navigate to the following locations in the Show menu and observ ...

Patch missing when importing with CADKernel

PIE window resizes on launch when using Windows scaling

The user suggested scaling the TitleBarSize in SWindow::GetClientRectInScreen by GetDPIScaleFactor(), which makes sense to me but doesn't seem to solve the issue entirely. ...

Iris - check hit in FNetBitStreamWriter::InitBytes if object has only COND_InitialOnly replicated properties

InitOnly FReplicationStateDescriptors will have a value of 0 for ChangeMaskBitCount, so if an object only has COND_InitialOnly properties, its FReplicationProtocol will also have a ChangeMaskBitCoun ...

Movie Scene Capture - DX12 Render Artifacts and Delay

If using the Legacy renderer (Movie Scene Capture) with DefaultRHI DirectX12, there's new delay and also some frames get weird artifacts.   However, the delay and artifacts do not appear when using ...

VerboseCookerWarning warnings: Saving object into cooked package %s which was created at cook time, Object Name UniqueObjectNameForCooking_0, Full Path %s, Outer class %s

Creating objects at cook time that are exported into the cooked package is a possible cause of indeterminism, and therefore we have banned it in engine classes and will fire a warning about it. Cur ...

Gameplay effect modifier tag requirements are not checked for Instant/periodic effects

When creating a GameplayEffect, modifiers can tag requirements for the Source and Target tags. For Duration gameplay effects, these tag requirements are checked from FAggregatorMod::UpdateQualifies ...

Object may not be able to go dormant with PushModelSkipUndirtiedReplication enabled

In ReadyForDormancy, we check if the replicator has any change lists or property updates that haven't been acked. However, these checks are not made in CanSkipUpdate, which can result in the object ...

Performance decreases with the number of morph targets

Performance decreases quite a bit on characters with large number of morph targets, as soon as even one target is active.  ...

The ActionInstanceData event is incorrect when triggering a "Started" delegate which is on the same tick as a "Triggered" event

This is happening because the FInputActionInstance has the event as "triggered" when the triggered event and started event occur on the same frame. This is correct, but when the delegate gets fired ...