Crash on PIE exit after dynamically enabling and disabling tick functions through the Level Script blueprint.

UE - Gameplay - Mar 23, 2018

User reports hitting an assertion due to invalid FTickTaskManager state when game is attempting to unregister a tick function that was previously disabled dynamically. Failed assertion is in FTickT ...

Editor crashes upon PIE unless tick is disconnected and reconnected

UE - Gameplay - Blueprint - May 14, 2015

Project crashes if user presses compile or PIE unless they first disconnect and reconnect event tick within blueprint component BP_BuildStage. Frequency: 4/4 CrashReporter: [Link Removed] ...

Crash when setting console command for shadow max resolution to 1

UE - Graphics Features - May 29, 2015

When setting the console command r.shadow.MaxResolution to a value of 1 will cause a crash. CrashReporter: [Link Removed] ...

Crash when renaming AnimGraph function in AnimBP

OLD - Anim - Apr 17, 2015

When renaming the AnimGraph in an Animation Blueprint, the editor crashes after you hit enter. [Link Removed] [Link Removed] Occurs in: 4.7.5 Release CL:2503383 4.8 Main CL:2513846 ...

Update Oculus Audio SDK

UE - Platform - XR - May 19, 2016

The current version of the oculus audio SDK fails to initialize for some clients. We haven't been able to reproduce the problem internally but we're told from Oculus that updating the SDK will fix t ...

UHT needs to enforce that BlueprintNativeEvents have "virtual" on user-defined _Implementation functions

UE - Foundation - Core - Mar 3, 2015

Forgetting to add the "virtual" in engine code implementations of these _Implementation functions makes them not overridable by users. UHT should catch this and emit a warning/error. For instance t ...

Investigate intermittent crash in CacheOptimizeIndexBuffer on Editor startup on Linux

UE - Platform - Linux - Nov 23, 2015

Building 4.10 from the GitHub release branch on Linux fails to open after install and instead crashes Community Suggested Fix: Switching triangle order optimization off with r.TriangleOrderOptimiza ...

Particle Bounds Don't Update Correctly After Moving Particle Component Via BP

UE - Graphics Features - Mar 30, 2017

It appears that particle components don't update their bounds correctly when they are moved in a scene. If a particle emitter isn't currently visible at the start of the game it will remain culled. ...

Reimporting Static Mesh LODs yields unexpected material assignments

Tools - May 24, 2018

Reimporting an asset after making changes causes loss of saved LOD changes when editing a static mesh. Similar issue was logged and fixed for SkeletalMeshes but this issue is still occurring for ...

Non-nativized classes that implement a nativized interface class do not get interface methods called when invoked through a Blueprint function library.

UE - Gameplay - Blueprint - Jul 5, 2018

UObjectBaseUtility::GetInterfaceAddress() fails due to an incorrect serialized value of the 'bImplementedByK2' property within the non-nativized class's Interfaces array on save. See support thread ...