Unreal Engine Issues

InPartialBunch can cause crash in FNetBitReader::CountMemory during memreport

An actor channel's InPartialBunch won't be deleted and cleared until a new partial bunch is received. This can result in a situation where memreport counts the memory for an old InPartialBunch and i ...

FMath::Eval ignores groupings while solving

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 FMath::Eval ignores groupings while solving problems. This has caused some confusion with users who are expecting the groupings to b ...

AncientGame's fire is quite ghosty with r.SeparateTranslucency=0

Inherited UserWidgets can't create animations that bind to widgets on their parent's WidgetTree

Animating an inherited widget from a child UserWidget class appears to work, but the bindings don't resolve properly and the animation is null at runtime. This workflow should either be supported, o ...

Landscapes cause Vulkan crash related to GRHISupportsAttachmentVariableRateShading

Binary (Installed Build)//UE5/Release-5.1 @CL22986940 I encountered this same crash when creating a landscape twice, but was not able to consistently reproduce it with those steps. I figured out th ...

[Audio Synesthesia] - Setting a Synesthesia NRT's settings to None crashes editor

Setting an Audio Analysers NRT settings to None crashes the editor. Assertion failed: nullptr != LoudnessSettings [File:D:\SMoyls_UE5_Release-5.1\Engine\Plugins\Runtime\AudioSynesthesia\Source\Audio ...

UMG: Drag-drop widgets get stuck at (0, 0)

Reported on the dev forum, drag-drop widget is broken in the 5.1 Preview.https://forums.unrealengine.com/t/unreal-engine-5-1-preview/662523/221 Anyone else having problems with UUserWidget::SetPosi ...

The == and != symbols of the 'Not Equal(Enum)' and 'Equal(Enum)' are obscured

This is not a regression this has existed since as early as 2015(seen screenshot: [Link Removed]). Tested in //UE4/Release-4.27 CL18319896, and //UE5/Release-5.0 CL20979098 As user reported the == ...

Don't allocate landscape heightfield collision component scene proxies when Collisions display is off

ATM, ULandscapeHeighfieldCollisionComponent's scene proxy is created all the time, although it's only used for displaying collisions when Collisions mode is on. The scene proxies pre-allocate a very ...

Deadlock in Editor Asset Subsystem when waiting for loaded assets