virtual texture lightmap crash due to pixel format r8Unorm_srgb in MacEditor

UE - Rendering Architecture - RHI - Mar 4, 2021

Currently r8Unorm_srgb is required by virtual texture lightmap, and the Metal RHI simply forbids r8Unorm_srgb on Mac platform. Since the latest MacOS 11.0+ have the support of r8Unorm_srgb, we shoul ...

Crash when editing FRuntimeFloatCurve's curve from sequencer's edit key window

UE - Anim - Sequencer - Mar 31, 2023

Crash when editing a FRuntimeFloatCurve curve exposed through EventTrack or a self-made Struct from the sequencer key edit window. FRuntimeFloatCurve does not support Expose to Cinematic, so this m ...

Sequencer 3D Trajectories run very slow on deep hierarchies

UE - Anim - Sequencer - Aug 27, 2018

Using a Level Sequence with deep hierarchies causes the FPS to drop to low numbers when they are all selected within the Sequence. This is a regression from 4.19.2 (CL-4033788). This issue was repo ...

AutoReimport can kick in too early for files that are being written out continuously

UE - Editor - Content Pipeline - Import and Export - Apr 2, 2015

When exporting a large file, due to the way the auto reimporter only checks for the number of changed files has remained stable for some given threshold, it can kick in too early even though the sin ...

Structs appears to display incorrectly in behavior tree nodes

UE - AI - Oct 7, 2016

When editing a behavior tree blueprint, if one of the custom nodes created and placed in the behavior tree has an "Editable" variable of a user defined struct type, then the variable's value appears ...

[CrashReport] UE4Editor_TextureFormatDXT!__delayLoadHelper2() [delayhlp.cpp:323]

UE - Graphics Features - Nov 3, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Unknown exception - code c06d007e (first/second chance not available) Source ...

[CrashReport] UE4Editor-Core.dylib!FThreadStats::FThreadStats()

UE - Graphics Features - Nov 17, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: SEGV_MAPERR at 0x0 Source Context:N/A Most recent user affected CL: 3195953 ...

Pixel Depth not Working on Mobile when used with Custom Depth

UE - Platform - Mobile - May 4, 2017

A licensee is reporting incorrect results when using the Pixel Depth expression and Custom Depth. Custom Depth is working fine, but when combined with Pixel Depth the results are quite different fr ...

[CrashReport] UE4Editor_AnimGraph!FAnimPreviewInstanceProxy::Evaluate() [animpreviewinstance.cpp:158]

OLD - Anim - Feb 27, 2018

No user comments in crash group 152 bool FAnimPreviewInstanceProxy::Evaluate(FPoseContext& Output) 153 { 154 // we cant evaluate on a worker thread here because of the key ...

Metal SM5 shader code cannot be viewed in the Editor on Mac

UE - Platform - Mobile - Aug 24, 2018

The Metal SM5 shader code cannot be viewed in the Editor for a Material. Prior to 4.20, only HLSL Code could be viewed. In 4.20, a number of additional shader options were added, and they all work w ...