Unreal Engine Issues

Inconsistent Prioritization of Navigation Modifiers

When working with Nav Modifiers in a level that contains objects that have a custom Nav Area class, the prioritization of the modifiers is not consistent. If you notice in the attached project, so ...

Editing child property values is affecting parent property values

Lighting data wiped if sub level is hidden while rebuilding lighting for visible levels

When building lighting now you can no longer have a hidden sub level and have it retain it's built light if it was previously built. For instance, if you have a persistent level and hide the sub-lev ...

Indirect Lighting Cache causes Flickering on Skeletal Meshes

Indirect Lighting Cache is causing the Indirect Lighting for Skeletal Meshes to flicker. I have attempted both ILCQ Volume and Point cache qualities, and it seems Point produces the most exaggerate ...

Manually importing LODs are rotated 90 degrees when using Transform Vertex to Absolute

When importing a Static Mesh if you use the default settings and then manually import any LODs for that static mesh they will be rotated by 90 degrees. I found that disabling Transform Vertex to A ...

[CrashReport] UE4Editor-MetalRHI.dylib!FMetalDeviceContext::CreateDeviceContext()

Error message: SEGV_MAPERR at 0x3 Source Context: Most recent user affected CL: 3249277 Logs: [Link Removed] [Link Removed] [Link Removed] [Link Removed] CrashReporter User Descriptions:Just i ...

[CrashReport] UE4Editor_Engine!UMaterialInstance::SetParentInternal() [materialinstance.cpp:2141]

This JIRA is being entered as a result of this being one of the top crashes in 4.13 Preview 2 Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 2 ...

Crash due to D3D device being lost. (Error: 0x887A0006 - 'HUNG')

This JIRA has been made to consolidate all "D3D device being lost. (Error: 0x887A0006 - 'HUNG')" crashes into one. Previous Jira tickets include:[Link Removed][Link Removed][Link Removed][Link Remo ...

Crash on iOS9 when using Apple's CFNetwork library

Many clients have hit a crash due to an Apple library using operator delete on a memory block that was not allocated with operator new. This happens with the following callstack on iOS9 in UE4.13 o ...

Buffer Visualization Overview is affected by EV

EV -0.5 [Image Removed] EV 0.0 [Image Removed] ...