Unreal Engine Issues

Saving Behavior Tree with Blueprint task inheriting from native class invalidates Blackboard key when BP contains a function

A regression introduced in UE 5.6 causes Blackboard key selectors in Blueprint tasks to become invalid when the Blueprint inherits from a native subclass of UBTTask_MoveTo (or UBTTask_BlackboardBase ...

Slowly flickering display in GearVR

The appears repeatedly in the log:[2017.07.12-14.57.06:022][ 4]LogHMD: Initializing OVRPlugin session [2017.07.12-14.57.06:652][ 4]LogHMD: Setting user focus to game viewport since session status ...

[CrashReport] TOctree<TVolumeLightingSample<3>,FLightVolumeOctreeSemantics>::TConstElementBoxIterator<TInlineAllocator<99,FDefaultAllocator> >

This Jira is a continuation of [Link Removed]. This is the same callstack which users are submitting, however the other Jira eventually got specific repro steps which were verified fixed in 4.17.0. ...

"Go to Definition" does not work properly in Binary

Using the Go to definition option on a blueprint node in the Binary editor opens Visual Studio but does not actually show the definition as requested. The user is instead given the following warning ...

NaN Present on IOS after UE5.6 Because of Removal of MobileSpecularGGX

In UE5.6 MobileSpecularGGX was removed and now mobile devices also run D_GGX. The problem is that there are still cases where very bright values are produced (image 1) and thus NaNs appear in the Bl ...

VehicleGame cannot Compile in the Editor if it was created with a name other than "VehicleGame"

Attempting to compile a VehicleGame project will fail if it was created with a name other than "VehicleGame". ...

Editor crashes when replacing Packed Level Actor assets during asset deletion process

The Random Audio Node Function 'Randomize Without Replacement' does not Function Correctly

When attempting to play random sounds using the 'Random' node within the audio editor, the 'Randomize Without Replacement' does not function as explained via the tooltip. The options says that if y ...

[CrashReport] UE4Editor_Slate!FSlateApplication::RoutePointerMoveEvent() [slateapplication.cpp:5195]

This is a longstanding crash that occurs with low frequency, but has affected over 200 users. One user describes that this occurred while packaging a project, although other users have not provided ...

[CrashReport] UE4Editor_Engine!FShaderCompileUtilities::DoReadTaskResults() [shadercompiler.cpp:663]

Top Crash in 4.18 release Users have provided no comments on the issue Source Context:// Read single jobs 651 { 652 int32 SingleJobHeader = -1; 653 OutputFile << Si ...