Unreal Engine 4.9 Update Notes

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4.9.0 Release

Released: 08/31/2015

Github: https://github.com/EpicGames/UnrealEngine/releases/tag/4.9.0-release

Release Notes: Unreal Engine 4.9 Release Notes

4.9.1 Hotfix

Released: 09/15/2015

Github: https://github.com/EpicGames/UnrealEngine/releases/tag/4.9.1-release


  • UE-20265 ForEach 'Enum' node returns incorrect enum values

  • UE-20643 Enum to Byte conversion returns 2 for the first enum then 4 then 6 and so on rather than 0, 1, 2, etc

  • UE-20878 Child Blueprint getting certain property values cleared in cooked games

  • UE-20009 [CrashReport] UE4Editor_UnrealEd!operator<<() [editortransaction.cpp:157]

  • UE-20867 Issues converting enum to byte in BP

  • UE-20733 Disabling collision of an actor after an overlap event will cause the event to fire twice

  • UE-20466 [CrashReport] UE4Editor_Engine!UAnimSequence::GetBonePose() [animsequence.cpp:994]

  • UE-20413 Montage with negative value of curves doesn't work

  • UE-20496 Overlap checks during swept movement can generate repeated begin/end overlaps, or wrong end overlap event

  • UE-20146 Can't increase lightmap resolution on landscape, it crashes

  • UE-20202 Dynamic point lights generate shader compile errors on HTML5

  • UE-20492 Renamed/Copied code project folders fail to launch on to iOS

  • UE-20728 Editable Text crashes on Android

  • UE-20380 HTML5: Mac: RunMacHTML5LaunchHelper.command has incorrect file type in P4, causes error

  • UE-20419 Mono error encountered with packaged HTML5 sample

  • UE-20872 Enabling MSAA crashes when using metal

  • UE-20968 Offline Shader Compile has been disabled on Mac

  • Note: When performing a launch on from the Mac to iOS the first time there will be an increase in the cook time as the shaders will be rebuilt.

  • UE-20928 Launch on for Android may crash or use wrong version of aapt

  • UE-20864 Launch on to Wi-Fi Android devices will fail

  • UE-20008 SunTemple exits to home screen on the iPad 4

  • UE-20590 Can't build UE4Game for IOS from PC

  • UE-12215 Sound effects continue to play when game is suspended on Android

  • UE-20692 Epic Games Launcher unhides while the editor is loading on Mac

  • UE-20991 Launch On for iOS does not automatically start

  • Note: The Launch On feature for iOS on Mac has been temporarily disabled due to an incompatibility with Xcode 7.0. We are working on the issue for 4.10.

  • UE-20640 SSAO 4.9 perf regression fix

  • UE-20335 Blendable Weight set higher than 1.0 crashes

  • UE-20639 Crash on Mobile Previewing or Playing in a New Editor Viewport a Mobile/Tablet - Mobile/HTML Project

  • UE-20297 REGRESSION: HierarchicalInstancedStaticMeshComponent LOD transitions are broken in 4.9 and Main

  • UE-20172 [CrashReport] UE4Editor_Engine!FBatchedElements::FSimpleElementBSSContainer::GetBSS() [batchedelements.h:308]

  • UE-20699 "Build Solution" does not work for GitHub users

  • UE-20291 Rev Oculus SDK to 0.7 / 0.6.18

4.9.2 Hotfix

Released: 09/30/2015

Github: https://github.com/EpicGames/UnrealEngine/releases/tag/4.9.2-release


  • UE-20792 DrawMaterial() Function not Rendering Translucent Material to HUD

  • UE-21233 Calling RequestStimuliListenerUpdate on actor with one element in AIPerception Sensing Config causes crash

  • UE-21234 Crash on play when AIPerception Senses Config element is set to "sense config" options

  • UE-20913 Undo after deletion in BP editor causes crash

  • UE-17698 [CrashReport] UE4Editor_CoreUObject!UStruct::IsChildOf() [class.h:400]

  • UE-20644 [CrashReport] Crash while undoing in Blueprints - FObjectRecord::FReader::operator

  • UE-20258 Child Blueprint classes can no longer change default values for inherited variables

  • UE-21081 Cannot open assets created in 4.9.1 in 4.9.0 version of editor

  • UE-20210 [CrashReport] Crash on Windows Chinese version when changing editor language

  • UE-21337 Movies are not skipped when Wait for Movies to Complete is false

  • UE-21292 Parallax Occlusion Mapping broken on Macs

  • UE-21127 Crash in FSlateImageRun destructor

  • UE-20550 Sliders and check boxs not working on touch screen device

  • UE-21076 Possible divide by zero in animation transitions with zero crossfade durations

  • UE-20961 [CrashReport] UE4Editor_Engine!FKShapeElem::GetShapeCheck() [shapeelem.h:55]

  • UE-20952 Launching a Project which uses Depth of Field crashes to Home Screen on iOS8 device

  • UE-21123 PowerVR Galaxy S4 (GT-I9500) shows black scene when MobileHDR enabled

  • UE-21367 Submitting to App store for IOS 9 leads to validation errors

  • UE-20940 Effects.umap causes Standalone and Mobile Preview PIE to Crash

  • UE-21126 Foliage culling broken on XboxOne

  • UE-21185 Update buttons on CrashReporter window to encourage submission

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