[AI] AgentToNavDataMap still contains entries when cleaning up navigation system

UE - AI - Navigation - Jun 10, 2024

The navigation system has errors in the log for agents still being mapped to navigation data in CleanUp. This appears to stem from agent step height being recalculated in ARecastNavMesh::SetConfig i ...

[VariantManager] Over exposure when using image from file as thumbnail

UE - Editor - Content Pipeline - Variants - Jun 10, 2024

This is a sRGB color space issue. Potential solution: Use regular texture import instead of FImageUtils::ImportFileAsTexture2D in ThumbnailGenerator::GenerateThumbnailFromFile ...

SharedStructMemory's custom deleter doesn't call ~SharedStructMemory and may result in a memory leak

UE - AI - Mass - Jun 10, 2024

FSharedStructMemory uses a custom deleter that calls FMemory::Free, but it doesn't call the destructor. FSharedStructMemory's destructor is responsible for correctly destructing the internal ScriptS ...

Draw Invalidating Bounds debug view mode for Virtual Shadow Maps is gone in 5.4

UE - Graphics Features - Shadows - Jun 9, 2024

The CVar "r.Shadow.Virtual.Cache.DrawInvalidatingBounds" referenced in the official 5.4 documentation for virtual shadow maps, no longer shows any bounds as the underlying code seem to be removed in ...

Can't set "r.Shaders.Optimize" to false in UE5.4

UE - Rendering Architecture - Shaders - Jun 7, 2024

The CVar "r.Shaders.Optimize" cannot be set to false from DefaultEngine.ini in the section "[ShaderCompiler]" as its help text describes. Also tested on UE5-Main, CL: 34200103 ...

PostReplicatedChange called for fast array item even when no values change

UE - Networking - Jun 7, 2024

Unless a property is set to REPNOTIFY_Always, we compare the property's received value to the current value on the client before calling the OnRep function. However, when determining if a fast array ...

InlineEditConditionToggle behavior present for UProperties even when InlineEditConditionToggle property specifier is not used

UE - Editor - Workflow Systems - Jun 6, 2024

Reported by customer: It seems like in some cases, even when the InlineEditConditionToggle property specifier is not used, the behavior it enables is turned on anyway. It's possible to disable it w ...

LoadingScreen by MoviePlayer doesn't support Material in UE5.4

UE - Editor - UI Systems - Jun 6, 2024

An assert crash is now triggered when set a widget using material to WidgetLoadingScreen of FLoadingScreenAttributes then call FDefaultGameMoviePlayer::SetupLoadingScreen(). The ensureMsgf in quest ...