Unreal Engine Issues

FormatName is not added to the display name of gpu events in some cases.

If the breadcrumb events have no metadata but the metadata spec contains a format name, the format name is not added to the display name and the user cannot see it. GPU Profiler 2.0. The trace they ...

Crash when opening a texture or editing its properties after stopping a preview in the material editor

When a texture asset has certain properties edited, its PostEditChangeProperty() method calls to UTexture::NotifyMaterials(), which triggers a recompilation of materials that reference it in their m ...

Attached Project Crashing on Play When Using World Origin Rebasing with World Composition

The editor is crashing in the attached project on PIE when World Origin Rebasing is enabled. According to the user, this did not occur in 4.13, but I was unable to test any further back than 4.15, a ...

IOS deviceCrash when input Korean Charactor on EditableTextBox

Data loss caused by C++ Child Actor Component when compiling Child BP

Having Child Actor Components that are set in code can cause data loss upon compiling the blueprint. In this particular scenario, there are two custom Actor classes involved, MainActor and SubActo ...

Spot Light USD Export Produces Incorrect Intensity Values Based on Cone Angle and Source Radius

UPDATE: Should be fixed as of CL#52537078 (fb7af1) USD: Bake all frames of exposure animation tracks. When exporting Unreal Engine spot lights from a level to USD, lights with identical EV intensit ...

[CrashReport] Mac crash - UE4Game!FShaderCache::InternalSetGraphicsPipelineState

This is a common Mac crash in 4.18. It occurs in Game mode, not in Editor. Users have not provided any descriptions of their actions when the crash occurred. Callstack from Log[2017.11.21-20.30.4 ...

Paper2D: Editor hangs when assigning Sprite Atlas Group to Sprite

In UE 5.3 and later, assigning a Sprite Atlas Group to a UPaperSprite asset can cause the editor to hang and eventually crash. This behavior has been reproduced in 5.3, 5.6, and a recent UE5-main so ...

[Stream Cache][Assert] - UnrealEditor_Engine!FCachedAudioStreamingManager::RemoveReferenceToChunk() [AudioStreamingCache.cpp:701]

Found while messing around with a revamp of some of the Audio Stream cache tests. The map in this test is a WIP as I'm still just trying stuff out, but hit this assert 5/5 times.Assertion failed: Fo ...

Crash in RHICommandContext& GetContext() in Test/Shipping builds when bUseChecksInShipping is true

RHIinit() calls GRHICommandList.GetImmediateCommandList().GetContext() to make sure that GDynamicRHI->Init() initialized the immediate command list (by calling FRHICommandListImmediate::InitializeIm ...