4.15.1 Hotfix Released

The 4.15.1 Hotfix is now live! This hotfix resolves over 40 important issues in the 4.15 release.

Feel free to discuss this release on the 4.15 Forum thread.

If you experience a bug with the 4.15.1 Hotfix, please follow the How to Report a Bug guide to report it on the UE4 Answerhub.

Fixed in 4.15.1

Fixed! UE-42385 Crash adding an AnimComposite to itself
Fixed! UE-41929 Crash on reimport animation when there is an additive animation track and fbx frame number is different
Fixed! UE-41921 Crash Re-Importing animation with Additive Layer Tracks after adding a bone to the hierarchy
Fixed! UE-41817 Crash when manipulating Bone Space IK before setting EffectorSpaceBoneName
Fixed! UE-40025 Inconsistant Line Trace behavior
Fixed! UE-42756 UnrealVS not installing correctly for VS2017
Fixed! UE-42321 Unable to launch project from Visual Studio using installed engine build
Fixed! UE-42411 Resource files are not recompiled when Version.h changes
Fixed! UE-42205 Hot reload reported as failed in Visual Studio for projects opened in the Editor after having hot reloads performed successfully previously
Fixed! UE-42507 check(PIEInstanceID != -1) fails when executing SeamlessTravel
Fixed! UE-42480 SetVectorParameterValueOnMaterials In Construction Script Not Working in Packaged Game
Fixed! UE-42459 BP nativization doesn’t work with localized text
Fixed! UE-42166 Crash when pressing Ctrl-Z after creating a blueprint function
Fixed! UE-41893 Child blueprints cannot override functions if their parent was nativized
Fixed! UE-41168 Crash opening blueprint when a node class has been removed (e.g., anim blueprint with Ragdoll node with Immediate Mode plugin disabled)
Fixed! UE-42209 Incorrect error message when child actor mobility doesn’t match
Fixed! UE-42253 Enum Element Names Reset on Project Upgrade
Fixed! UE-42375 No input received from Raw Input device when packaged for 32bit
Fixed! UE-39884 Foliage LODs do not appear to use the base LODs lightmap any longer
Fixed! UE-42390 Ad banner is displayed incorrectly on Android 7.0 devices
Fixed! UE-42361 Slate UI asset colors washed out on iOS
Fixed! UE-42191 Scene Captures not working on Android
Fixed! UE-42036 Exposure Is More Extreme In High-End Mobile Preview Modes
Fixed! UE-42368 Find Sessions Consistently Returning Results Length of 0
Fixed! UE-42452 No textures listed when selecting material
Fixed! UE-42789 Rebuilding lighting not saving rebuilt light data
Fixed! UE-42196 Static meshes with auto-generated LODs can no longer share lightmaps between LODs
Fixed! UE-42179 Crash in FStreamingTextureLevelContext::GetBuildDataIndexRef
Fixed! UE-42165 [CrashReport] UE4Editor_Renderer!FReflectionEnvironmentSceneData::ResizeCubemapArrayGPU() [reflectionenvironment.cpp:215]
Fixed! UE-42102 Cooked build size increase due to MIC problem
Fixed! UE-41950 GitHub 3252 : Added MobileMaterialInterface to UsedMaterials
Fixed! UE-29491 Eye Adaption is incorrect at any size other than Fullscreen in PIE
Fixed! UE-42554 Regression: Visibility property is not seen in the animation track in UMG
Fixed! UE-42210 Crash when using Ctrl+Z to undo a single digit change in the size of a widget
Fixed! UE-41829 Crash scrubbing through sequencer when playing montage from old assets
Fixed! UE-42665 Update default super search engine to Bing
Fixed! UE-42428 Enabling “Show Only Modified Properties” causes details panel menu to disappear
Fixed! UE-42312 Crash when saving a Data Table that is referencing itself in a Data Table Row Handle
Fixed! UE-35606 Crash when Importing .OBJ using the File > Import into Level Option
Fixed! UE-42669 “Package localization ID mismatch during cook!” log spam
Fixed! UE-41797 Update to Korean localization
Fixed! UE-42106 Edge case where cursor can become hidden in gameplay
Fixed! UE-42631 Stereo off while prox sensor uncovered causes low framerate
Fixed! UE-42576 Oculus crash on “stereo on” when the proximity sensor is not triggered.
Fixed! UE-42101 [daydream] Black screen with FirstPersonTemplate and 4.15P4
Fixed! UE-41604 Integrate fix for improper failure case for allocation of RenderTargets in Oculus
Fixed! UE-41568 Need to enable GearVR on Win64 platforms