Assert message in TArray::CheckAddress is not appropriate for all situations

UE - Foundation - Core - Mar 21, 2017

The assert message in CheckAddress is as follows:"Attempting to add a container element (%p) which already comes from the container (%p, ArrayMax: %d, ArrayNum: %d, SizeofElement: %d)!" This assert ...

Static Mesh approximate size can be inconsistent between Content Browser and Static Mesh Editor

Tools - May 3, 2017

The approximate size for a Static Mesh that is shown in the tooltip from hovering over a Static Mesh in the Content Browser and the approximate size shown in the Static Mesh Editor can be inconsiste ...

FVector::Normalize does not set Vector to (0,0,0) upon failure, as described

UE - Foundation - Core - May 24, 2017

The FVector::Normalize function states in its comment that if given a vector that is too small to be normalized, it will set it to 0,0,0 and return false. The function only returns false and does no ...

Duplicate code present in FPropertyEditor::GetEditConditionPropertyAddress

Tools - Mar 21, 2018

There is a line of code in PropertyEditor.h in FPropertyEditor::GetEditConditionPropertyAddress that is duplicated. It does not cause an issue but it is also an unnecessary line. The line is #695 an ...

Incorrect macro definitions in VisualLogger.h

UE - Gameplay - Mar 28, 2018

UE_CVLOG_BOX, UE_CVLOG_OBOX, and UE_CVLOG_CONE have problems with their definitions. UE_CVLOG_OBOX calls UE_VLOG_BOX instead of UE_VLOG_OBOX All 3 of these macros also call their respective macro ...

Intermittent fatal assert in GetArchetypeFromRequiredInfoImpl for an object with RF_NeedLoad

UE - Gameplay - Components - Mar 25, 2021

The archetype instance for the ProceduralMeshComponent's physics data object is not flagged as such, so the event-driven loader does not designate it as a preload dependency, which may be putting us ...

Log message in ExclusiveLoadPackageTimeTracker is written incorrectly and means the opposite

UE - Foundation - Core - Oct 20, 2016

A licensee has pointed out that a log message in ExclusiveLoadPackageTimeTracker at line 191 is saying the opposite of what it means. This is the line in question:UE_LOG(LogLoad, Log, TEXT(" ... ...

UWorld::RemoveFromWorld does not check Pointer Reference for null before use

UE - Gameplay - Dec 12, 2017

The code in UWorld::RemoveFromWorld that removes Pawns that are about to be streamed out does not check to see if the pointer that it sets is null prior to using it. In cases where Pawns are rapidly ...

LLM: Delete LLM_IF_ENABLED if it is no longer a performance benefit, or convert all allocs and frees to use it if it still is.

UE - Foundation - Core - Cooker - Nov 13, 2023

The macros LLM and LLM_IF_ENABLED behave identically but are slightly different from a performance standpoint. For consistency all allocs and frees should use the same one. Measure the cost of a co ...

FTextLocalizationManager::UpdateFromLocalizationResource is discarding data

UE - Editor - UI Systems - Localization - Mar 1, 2016

FTextLocalizationManager::UpdateFromLocalizationResource is loading LocRes data into a temporary, rather than loading it into a reference to an entry in LocalizationEntryTrackers. ...