UPDATE!
We have just released
Preview 3 for 4.18! Thank you for your continued help in testing the 4.18 build before its official release. As a reminder, the Preview builds are for testing only, and should not be used for the active development of your project.
For a list of known issues affecting this latest preview, please follow the links provided on the first post in this thread.
Cheers!
Fixed in Preview 3
Fixed! UE-50242 Alembic Fails to Import .abc files on Mac
Fixed! UE-49864 Unable to summon Preview Scene Settings from Viewport menu
Fixed! UE-49598 Vertex Colors distort after merge actors is used
Fixed! UE-49701 [Bug] Accidentally left debug code in FMeshRenderer::RenderMaterial
Fixed! UE-50467 Animation fast path detection is broken with compilation manager turned on
Fixed! UE-49945 Animation compression crashes after cropping animation
Fixed! UE-49300 Crash recording into an existing target animation
Fixed! UE-48962 [CrashReport] UE4Editor_Engine!FAnimNotifyEvent::IsBranchingPoint() [animtypes.cpp:86]
Fixed! UE-50175 New Tap Delay Submix Pan parameter does not work in Surround Sound
Fixed! UE-49729 Sound Cue Does Not Play in Level On Linux
Fixed! UE-50568 Launching to Linux launches Game with No Audio (Module 'AudioMixerSDL' not found)
Fixed! UE-49807 Audio stops playing on Linux in Simulate after opening an animation composite
Fixed! UE-50663 CLONE- OnReleaseSource is not called on Steam Audio occasionally on PIE shutdown
Fixed! UE-49730 Apply Physical Material to All Bodies missing from new PhAT
Fixed! UE-50215 Editor Crashes when spawning a Physics enabled object inside another
Fixed! UE-50478 The game may assert when the async loading thread is enabled
Fixed! UE-50430 VS Code: build task for editor fails to execute due to "/bin/bash: xbuild: command not found"
Fixed! UE-50296 Visual Studio Code - Various issues already fixed in Dev-Core
Fixed! UE-50466 VS Code: Source code access plugin enable for Linux
Fixed! UE-50465 UAT is not Performing Build Steps During Launch On/Packages
Fixed! UE-50178 GitHub 4035 : Fix DECLARE_LOG_CATEGORY_EXTERN inconsistency
Fixed! UE-50019 Starting async load from PostLoad can return a partially async loaded object
Fixed! UE-49924 Disable compiling project executable on artist machines
Fixed! UE-50437 VS Code: Executing build tasks causes files and folders to not show up in the Explorer panel
Fixed! UE-50208 Installed Build command fails during build process
Fixed! UE-50223 Editor Crashes on Opening When C++ Modules Are Unbuilt
Fixed! UE-49150 Remove _NETCore folders
Fixed! UE-49313 Crash compiling blueprint after recompiling Graph Editer in BP editor
Fixed! UE-49812 Match3 fails to package for IOS when packaged from Binary - arm7 warnings/errors
Fixed! UE-50000 Foliage Glitch with Extra DrawCall
Fixed! UE-50008 Instance Static Mesh: Prevent reordering of PerInstanceSMData as it can break many things
Fixed! UE-49626 Removing instance from Instance Static Mesh Component from Blueprint won't remove the right index
Fixed! UE-48942 Unable to select foliage by left clicking after 1.5 k foliage meshes placed
Fixed! UE-48797 Foliage meshes do not appear in high res screenshots after certain amount
Fixed! UE-50428 Crash when undoing changes made with lasso tool
Fixed! UE-50515 Editor crashes when applying changes to the Landscape Material on QA-Landscape
Fixed! UE-50068 HISM non-built instance bad rendering
Fixed! UE-48361 Instanced Static Mesh components update incorrectly in Standalone and Packaged game
Fixed! UE-47852 Crash occurred launching QAGame onto Windows with Nativization enabled
Fixed! UE-50665 Calling Resolve on a Soft Object Ptr set in Blueprint Defaults from PIE can corrupt editor actors
Fixed! UE-48752 Navmesh is not generating correctly on instanced static meshes
Fixed! UE-50386 [CrashReport] UE4Editor_CoreUObject!FLinkerPlaceholderObjectImpl::FindRawPlaceholderContainer() [linkerplaceholderbase.cpp:161]
Fixed! UE-50482 [CrashReport] UE4Editor_Kismet!SBlueprintPaletteItem::OnNameTextCommitted() [sblueprintpalette.cpp:1319]
Fixed! UE-50403 Launch On fails at Stage Command with Nativization enabled
Fixed! UE-50259 Crash w. 'Serialized Class LinkerPlaceholderExportObject for a property of BlueprintGeneratedClass'
Fixed! UE-50166 Project using Make Map node fails to package with nativization
Fixed! UE-50177 Blutility - User Created Function not added to Test Blutility Actions in Blutility Details
Fixed! UE-50088 Duplicating Collapsed Node Graph With an Asterisk in the Name Results in "Invalid Graph"
Fixed! UE-49757 Render state for InstanceStaticMesh doesn't recreate after modification of instances list with RemoveInstance
Fixed! UE-49753 Editor crash when adding element to Instance array of custom InstanceStaticMeshComponent
Fixed! UE-49544 "Cook Content For Windows" command does not respect value of Blueprint Nativization Method INI setting.
Fixed! UE-49233 GitHub 3969 : Fix assert on load caused by a reference to a BP class containing a nativized enum
Fixed! UE-48992 [CrashReport] Assertion failed: *LinkedTo == RequestingPin [edgraphpin.cpp:1747]
Fixed! UE-48256 Project Launcher needs to be integrated with Project Packaging settings for Blueprint nativization.
Fixed! UE-50601 Cook on the Fly fails with Nativization set to Inclusive in a blueprint project
Fixed! UE-50558 Crash relaunching the editor after Recompiling Graph Editor in Blueprint
Fixed! UE-50442 Ensures and Crash saving level while running nativized launch on
Fixed! UE-50453 Compilation of BP_DefaultHand is slower with compilation manager enabled
Fixed! UE-50139 Interface function pins are not orphaned when changing interface parameter
Fixed! UE-50159 Crash attempting to use a struct containing a deleted struct in a blueprint and compiling
Fixed! UE-49834 Ensure undoing pin split - Found K2Node_CallFunction_429 ('K2Node_CallFunction') that does not belong to EventGraph.
Fixed! UE-50076 Crash upon diffing Blueprint that was reparented when its previous parent has already been deleted
Fixed! UE-50487 [CrashReport] UE4Editor_Landscape!ULandscapeInfo::RecreateLandscapeInfo() [landscape.cpp:2128]
Fixed! UE-49601 Editor crash occurs if a landscape is duplicated while Simulating a level
Fixed! UE-47468 [CrashReport] Assertion failed: !bRequireNormalization - UE4Editor_Landscape!ULandscapeComponent::ReplaceLayer()
Fixed! UE-48727 Layers are not displayed within the Target Layers section of the Landscape Editor in QAGame
Fixed! UE-50014 Landscape Spline: Copy pasting ULandscapeSplinesComponent to another landscape crash
Fixed! UE-48172 Landscape Mesh Flickers Rapidly When Using Sculpting Landscape
Fixed! UE-34476 Adv Vehicle Templates fail to Launch On OSX
Fixed! UE-50315 Shader compile errors on device for Galaxy S6
Fixed! UE-50477 Several new devices are not being detected for IOS
Fixed! UE-50461 ShooterGame has blown out rainbow artifacts on the Galaxy S6 Edge+
Fixed! UE-50375 Debug errors are flipped on the Android device when using ShooterGame
Fixed! UE-50454 Launch to iOS Fails: Multiple Conflicting Path Setups Attempted
Fixed! UE-50422 Benign iPhonePackager Logic Error: "iTunes not found!"
Fixed! UE-50165 Integer Overflow error when letting the HTML5 game run in Firefox
Fixed! UE-50118 Huge performance drop(from 60fps to 30fps) when launch an Android app from Editor on an Android O device
Fixed! UE-50185 Remove Android ES 3.1/AEP Deferred Renderer
Fixed! UE-50126 Android TcpMessageTransport wastes CPU cycles killing performance
Fixed! UE-50168 CLONE - 4.18 - Zen Garden HTML5 build does not render on Chrome on OS X
Fixed! UE-49351 Android Java side event listeners continue to process events when app is paused.
Fixed! UE-49382 Check failed in SceneUtils.cpp at line 490 while running QAGame on Firefox
Fixed! UE-49081 64bit build crashes on Android O when Online Subsystem Google Play plugin is enabled
Fixed! UE-49059 HTML5 - Unable to launch project onto HTML 5 from editor
Fixed! UE-48961 Xcode Path Mismatch Causes Build Failure in Mac Editor
Fixed! UE-47235 HTML5 Global Clip Plane Error Displays Upside Down
Fixed! UE-50129 Unable to launch project onto Chrome using UnrealFrontend
Fixed! UE-50627 Packaged/Launched Projects Crashing After Opening on tvOS
Fixed! UE-50230 ShooterGame crashes on the LG G5 creating widgets for virtual keyboard
Fixed! UE-46409 [CrashReport] Assertion on Mac: Could not create a libwebsocket - FNetworkFileServerHttp::Init()
Fixed! UE-49141 Virtual keyboard is unresponsive with repeated tapping in control (some devices)
Fixed! UE-49139 Tapping in the same text box doesn't make the virtual keyboard disappear
Fixed! UE-49124 Cursor in virtual keyboard and UMG don't match
Fixed! UE-50320 CLONE - Text in UMG controls flickers during update from Virtual Keyboard (4.18 branch)
Fixed! UE-49984 Code signing fails when force selecting a wildcard provision
Fixed! UE-50540 Reflection artifacts on metallic surfaces on ES2
Fixed! UE-43078 HTML5 vehicle blueprint hangs on Launching Engine
Fixed! UE-50367 Sample Project Icons are displayed as a generic Unreal Logo
Fixed! UE-50574 Media Textures cause graphical corruption on older Mali drivers
Fixed! UE-50633 Front camera is oriented upside down on Nexus6P
Fixed! UE-50045 Editor crashes when PIE'ing as a client with "Use Single Process" disabled (ObjOuter == NULL)
Fixed! UE-49672 Failed to enter . error occurs during PIE in Standalone Game
Fixed! UE-49618 Clients are not able to connect to the Listen Server in PIE
Fixed! UE-50125 FTcpListener implementation uses polling and either eats 100% CPU or has a delay before accepting connections
Fixed! UE-50197 Match 3 Google UI Leader Boards are not functional
Fixed! UE-47071 Crash when trying to launch ShooterGame with -game
Fixed! UE-50364 Incorrect DistanceFieldAO rendering on Metal & crash when the validation layer is enabled
Fixed! UE-50294 Linux Editor fails to compile due to case sensitive Count error
Fixed! UE-50293 Volumetric fog renders black on Mac after fixing UE-49983
Fixed! UE-50280 Ensure exiting VR Preview with Oculus
Fixed! UE-50323 Buffer locking does not work on DX12
Fixed! UE-50476 Editor outlines not showing on Vulkan
Fixed! UE-50267 Assertion failed: IsInActualRenderingThread() || IsInRHIThread() in VulkanQuery.cpp Line:92 when opening a project in the editor with -vulkan
Fixed! UE-50341 Visualize Volumetric lightmap spheres should use 18% grey
Fixed! UE-50244 Mac crash adjusting slider - Assertion failed: [File:/...MetalPipeline.cpp] [Line: 729]
Fixed! UE-50176 Editor crashes when opening ShooterGame due to TextureStreaming
Fixed! UE-49987 TM-Shadermodels Cloth Rendering Invisible in QAGame when launched with -game
Fixed! UE-49979 Crash opening DesertRallyTrack - Couldn't find Shader TBasePassVSFCachedPointIndirectLightingPolicy
Fixed! UE-49965 Artifacting in right eye of HMD in SunTemple
Fixed! UE-49926 Debuging view modes are broken in editor on HighDPI monitors
Fixed! UE-49904 ContentExamples Blueprint_Communication lightbulb is dull and flickers
Fixed! UE-49893 Cloth rendering is missing in OpenGL4 (sim working ok) after Dev-Rendering merge
Fixed! UE-50525 HighDPI derived screen percentage must be set even if r.ScreenPercentage != 100%
Fixed! UE-50518 Planar reflections are not rendering on Mac
Fixed! UE-49369 Severe material swimming when meshes collide with each other
Fixed! UE-49058 OpenGL4 viewport flashes black when clicking off of a context menu
Fixed! UE-45644 Tm-AnimPhys Fails when performing a Launch on With Skincache Enabled
Fixed! UE-50302 Assertion Failed: Referencing VulkanMemory.cpp after Exiting Editor
Fixed! UE-50074 Point lights are gaining an unintentional rotation
Fixed! UE-50562 Build fails due to potential divide by 0 error
Fixed! UE-50456 Fix Vulkan CPU syncing with GPU
Fixed! UE-50590 Area lights are too bright
Fixed! UE-49964 Lighting scenario loading can break volumetric lightmaps
Fixed! UE-50134 Switching desktops on Mac while running an app causes rainbow flickering in game
Fixed! UE-50214 Shooter Game Editor Crash on Editor Start
Fixed! UE-50499 [CrashReport] UE4Editor_UnrealEd!FLightmassExporter::SetVolumetricLightmapSettings()
Fixed! UE-50519 Mip selection does not affet the displayed resolution in the texture editor
Fixed! UE-50479 Editor Crashes when opening TM-ShowFlags_Advanced
Fixed! UE-50196 [CrashReport] UE4Editor_Engine!FDebugCanvasDrawer::InitDebugCanvas() [debugcanvas.cpp:158]
Fixed! UE-50179 Crash when exporting Static Meshes using "Export Selected" (Assertion failed: (Index >= 0) & (Index < ArrayNum)
Fixed! UE-50180 Master Bug - Crashes when Exporting FBX
Fixed! UE-50142 Crash when exporting Static Meshes as an FBX (UE4Editor-SlateCore.dll!SWidget::OnQueryShowFocus)
Fixed! UE-50160 Crash when using Export All or Export Selected (UE4Editor-UnrealEd.dll!ULevelExporterFBX::ExportBinary)
Fixed! UE-49759 Pixel Inspector Incorrectly Displays Final and Context Colors with HighDPI Enabled
Fixed! UE-49566 Changing the "Color Vision Deficiency Preview Type" setting under "Editor Preferences" does not work
Fixed! UE-49490 UMG Anchor lines not scaled with HDPI Monitor
Fixed! UE-48998 [CrashReport] UE4Editor_DetailCustomizations!`FBrushDetails::CustomizeDetails'::`2'::Local::OnClassPicked() [brushdetails.cpp:172]
Fixed! UE-48922 [High DPI] Drop Down windows at a certain length will flicker towards the bottom
Fixed! UE-50271 High res screen shot is blurrier with HighDPI monitor.
Fixed! UE-50573 Shots captured by 'HighResShot' command are captured at a lower resolution after entering Immersive Mode
Fixed! UE-50629 FastXML doesn't parse attributes with legally unescaped single and double quote characters
Fixed! UE-20884 [MAC] Editor keyboard bindings do not allow overriding already bound shortcuts
Fixed! UE-30134 Cannot Rename Folders in Content Browser Explorer Panel in OSX
Fixed! UE-29042 Unable to Rename using the Right-Click Menu on El Capitan in Blueprints and Sources Panel
Fixed! UE-50349 Context menus are dismissed when the mouse cursor overlaps the Viewport on Mac
Fixed! UE-50426 Mac Project Launcher fails to launch in editor on first attempt
Fixed! UE-50398 Mac Editor will not close after changing Icon / Splash Screen
Fixed! UE-49947 Mobile Preview Controls not registering clicks and Mouse difficulty entering lower left quadrant on Mac
Fixed! UE-49786 [CrashReport] Mac crash - FCocoaRunLoopSource:
rocess
Fixed! UE-12867 Cannot bring up windows in Mac UFE
Fixed! UE-50356 Command + Q crashes Shipping configuration apps on Mac
Fixed! UE-49646 HIghDPI Incorrectly Renders Viewport with Mobile Rendering Preview Enabled
Fixed! UE-25954 ContentExamples Audio reverb effect does not play in Linux
Fixed! UE-45821 [CrashReport] Mac crash in UE4Editor-Engine.dylib!LoadPhysXModules()::$_0:: operator()()
Fixed! UE-47560 [CrashReport] Linux crash - FLinuxApplication::CreateLinuxApplication()
Fixed! UE-45755 [CrashReport] Crash on Mac related to editor close
Fixed! UE-49784 [CrashReport] Mac crash - TArray<FDeferredMacEvent, FDefaultAllocator>::ResizeGrow
Fixed! UE-39294 Editor Menus don't update on Mac to currently selected Tab.
Fixed! UE-46552 Clicking on listed assets does not assign Focus to the editor on Mac
Fixed! UE-38921 Rename Folder in World Outliner does not function on Mac
Fixed! UE-37724 Right click rename curve in Persona does not allow you to change the name of the curve on Mac
Fixed! UE-38856 Linux viewport has raindow color and faint shadows on Mobile templates in OpenGL4
Fixed! UE-44954 [CrashReport] UE4Editor_PropertyEditor!FPropertyEditor::IsEditConditionMet() [propertyeditor.cpp:626]
Fixed! UE-50502 [CrashReport] Crash related to asset export - UnFbx::FFbxExporter::FillExportOptions() [fbxmainexport.cpp:152]
Fixed! UE-50231 After importing morph target: Ensure condition failed: Referencing SkeletalRenderGPUSkin.cpp
Fixed! UE-50509 Imported Morph Targets not Working Correctly
Fixed! UE-50447 Tooltips Render as a Small Empty Box on Mac
Fixed! UE-50015 VREditor: Numpad missing number images
Fixed! UE-50620 VREditor: Smart Snapping does not work with Translate Snapping disabled
Fixed! UE-50269 ARSample: Level Blueprint fails to compile
Fixed! UE-50365 ARSample needs to have both ARKit and ARCore plugins enabled.
Fixed! UE-50385 Mac VR rendering incorrectly
Fixed! UE-50374 Integrate minor fixes from Google for ARCore and Daydream.
Fixed! UE-50335 ARCore failing to package
Fixed! UE-50027 Dummy code needs to be removed from ARSample and ARKitEditorPlugin
Fixed! UE-50100 Google VR / ARCore SDK Rev
Fixed! UE-49952 Layer Canvas Fixes
Fixed! UE-49953 scenerendertarget.cpp fix
Fixed! UE-49855 MotionController Haptics not enabling properly with Vive on Mac
Fixed! UE-46724 Vertical camera position locked in PIE in First Person template after playing in VR with GoogleVR Instant Preview
Fixed! UE-48260 Play area bounds are offset so that the player's spawn position is at the center of the player start
Fixed! UE-48804 Daydream: Controller's laser pointer is using a broken material
Fixed! UE-50533 GoogleVR project crashing on launch on iOS devices
Fixed! UE-50505 Lighting channels in TM-VRLoader sublevel produce a strobe effect in VR
Fixed! UE-50537 ARCore fixes from Bo
Fixed! UE-50495 GoogleVRHMD ensure in Instant Preview
Fixed! UE-50279 Crash exiting VR Preview with Vive
Fixed! UE-50579 Editor crashes when exiting SteamVR while Editor is running
Fixed! UE-49887 Crash playing in VR with Stereo Layers on Mac
Fixed! UE-50359 Packaged Sun Temple Fails to Launch when on a device with IOS 11
Fixed! UE-50625 Building for iOS fails with Apple ARKit plugin enabled
Fixed! UE-50366 Expose Apple-specific hit-testing functionality.
REMEMBER: Please report any new bugs you find to the UE4 Answerhub in the 'Bugs Reports' section.
(How to Report a Bug)