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Known Issues in 2021.1.4f1

  • Asset Import Pipeline: Prefab script field reference is lost when project is upgraded (1328724)

  • Animation: AnimationEvent is fired late or isn't fired at all when Animation's 'Motion Time' value is set manually (1324763)

  • Global Illumination: Performance regression when baking light probes with a light cookie in the scene (1323393)

  • Asset Bundles: [macOS] Editor crashes when trying to build Asset bundles in InitializeOnLoad or InitializeOnLoadMethod time (1328463)

  • Scene/Game View: [Game view] Game stops accepting input when the Game view undocked and re-docked during Play Mode using the Input System (1320678)

  • Settings Window: Editor freezes when FixedTimestep value in the Preferences is set to 0/0 (1326481)

  • 2D: [Skinning Editor] Vertex can't be created after modifying Vertexes weight and when Sprite is from the .psb file (1322204)

  • AI: Crash with ComputeTileMeshJob when generating Navmesh (1329346)

  • Global Illumination: Reflection probes don't contain indirect scene lighting after the on-demand GI bake from the Lighting window (1324246)

  • Animation: [Performance Regression] AnimationWindowState:get_allCurves takes approximately 5000ms to load animation in the Animation window (1320250)

  • IL2CPP: Build fails when using a combination of messages, SyncVars and SyncList in a project (1328966)

  • Metal: Performance in Game View is significantly impacted by Gfx.WaitForPresentOnGfxThread when a second monitor is connected (1327408)

  • Terrain: All the textures are cleared when creating Texture array (1323870)

  • HD RP: The camera doesn't rotate in HDRP Template with the SimpleCameraController.cs script (1326816)

  • Scene Management: Crash on BuildPrefabInstanceCorrespondingObjectMap when overriding nested prefab inside AssetDatabase.StartAssetEditing() block (1324978)

  • WebGL: "SharedArrayBuffer will require cross-origin isolation as of M91" warning is thrown when launching Player on Chrome (1323832)

  • Linux: Linux Editor crashes at "_XFreeX11XCBStructure" when loading tutorials (1323204)

  • Terrain: Crash on TreeRenderer::WillRenderTrees when being in Play Mode for several seconds (1317966)

  • IMGUI: Contents of a ModalUtility window are invisible when it is launched from a Unity Context Menu (1313636)

  • Packman: User can't easily configure location of both UPM and Asset Store package local cache (1317232)

  • Serialization: Crash in SerializedProperty::IsValid when reordering a SerializedProperty list (1320319)

  • Global Illumination: [GPUPLM] Crash in RadeonRaysMeshManager::RemoveGeometry while baking Terrain game object with 4k lightmaps on certain GPU (1255993)

  • Terrain: Terrain Lit Opacity as Density option causes alpha'd areas on the 5th layer or greater to appear with artifacts (1283124)

  • Packman: Package resolution error when using a Git dependency referencing an annotated tag in its Git URL (1325920)

  • Scripting: Increased Script Assembly reload time (1323490)

  • Scripting: Crashes on mono_class_init when entering Play Mode after recompiling scripts (1262671)

  • Global Illumination: Wintermute::Geometry::Verify errors are spammed when baking a Mesh with Mesh Compression set to Medium/High (1319133)

  • MacOS: [macOS] "build is damaged and cannot be opened" error when downloading Unity build from internet (1323501)

  • Asset Importers: Wintermute::Geometry::Verify errors are spammed when baking a Mesh with Mesh Compression set to Medium/High (1313968)

  • 2D: [URP] The Camera renders black screen when Post Processing is enabled in the 2D Renderer and in the Camera Component (1318500)

2021.1.4f1 Release Notes


  • Search: Added support for menu states (disabled, checked) in QuickSearch. (EC-767).


  • Asset Import: Improved overall performance of FBX files import.

  • Asset Import: Improved performance of ASCII FBX files import.

  • Package: ProBuilder 5.0.3.

  • Package: Upgraded udp to 2.1.6.

  • Search: Added support for search item favorites.

  • Search: Added support to index sub objects and compress search index entries.

  • Search: Improved asset search performances by ~4x.

  • Search: Improved scene provider search performances and reduced the scene provider memory usage.

  • Search: Improved transaction manager performances.

  • Search: Many search UI and UX improvements.

  • Search: Search indexes size are now ~60% smaller.

  • Search: Settings can now be searched by their properties in Search.

  • XR: Updated OpenXR Package to 1.1.1.

API Changes

  • HDRP: Added: Added a fallback for the ray traced directional shadow in case of a transmission. (1307870)


  • HDRP: Assets going through the migration system are now dirtied.

  • HDRP: Changed normal used in path tracing to create a local light list from the geometric to the smooth shading one.

  • HDRP: Changed the behavior of the clear coat and SSR/RTR for the stack lit to mimic the Lit's behavior. (1320154)

  • HDRP: The default LookDev volume profile is now copied and referened in the Asset folder instead of the package folder.

  • Package Manager: Com.unity.purchasing updated with missing documentation.

  • Search: In Index Manager, for includes/excludes, we now keep the last file pattern that was selected in the enum field when adding another item.

  • Search: Ref:<asset_path> should only search results that has a direct dependency to <asset path>.


  • Animation: Fixed an issue where the animator parameter values would truncate float values to 1 decimal. (1308930)

  • Asset Bundles: Fixed issue where loading assets from AssetBundles synchronously did not load native object types recursively in some situations. (1321141)

  • Asset Import: Fixed performance regression of animation import. (1265275)

  • Asset Pipeline: Fixed an issue where duplicated assets with children could select the wrong main object. (1302399)

  • Asset Pipeline: Improved performance of flushing the preload operation queue from the main thread. This can occur when accessing an operation's result on the main thread before it is completed. (1322086)

  • Build Pipeline: Fixed an edge case where windows relative paths were not handled correctly. (1318673)

  • Editor: Fixed ReorderableList not getting expanded height for lists inside properties. (1324456)

  • GI: Fixed an issue where Wintermute::Geometry::Verify errors are spammed when baking a Mesh with Mesh Compression set to Medium/High. (1319133)

  • Graphics: Choose the proper graphics multithreaded mode. (1223767)

  • Graphics: Fixed instanced rendering light layers to be initialized to the default (first light layer) instead of zero to fix lack of lighting on the instanced objects. (1268590)

  • HDRP: Fixed a bug with Reflection Probe baking would result in an incorrect baking reusing other's Reflection Probe baking.

  • HDRP: Fixed an issue with Decal normal blending producing NaNs.

  • HDRP: Fixed Decal's pivot edit mode 2D slider gizmo not supporting multi-edition.

  • HDRP: Fixed Exposure Frame Settings control issues on Planar reflection probes. Dynamic reflections now keep their own exposure relative to their parent camera. (1312153)

  • HDRP: Fixed generation of the packed depth pyramid when hardware Dynamic Resolution Scaling is enabled.

  • HDRP: Fixed issue in wizard when resource folder don't exist.

  • HDRP: Fixed issue were the final image is inverted in the Y axis. Occurred only on final Player (non-dev for any platform) that use Dynamic Resolution Scaling with Contrast Adaptive Sharpening filter.

  • HDRP: Fixed issue with Decal projector edge on Metal. (1286074)

  • HDRP: Fixed issue with gbuffer debug view when virtual texturing is enabled.

  • HDRP: Fixed Render Graph Debug UI not refreshing correctly in the Render Pipeline Debugger.

  • HDRP: Fixed SSR Precision for 4K Screens.

  • HDRP: Fixed SSS materials in planar reflections. (1319027)

  • HDRP: Fixed volumetric fog being visually chopped or missing when using hardware Dynamic Resolution Scaling.

  • HDRP: Fixed volumetric fog noise due to sun light leaking. (1319005)

  • HDRP: Fixed warning fixed on ShadowLoop include (HDRISky and Unlit+ShadowMatte).

  • IL2CPP: Corrected convert assemblies that do not have a type. (1319131)

  • IL2CPP: Corrected the behavior of by-reference parameter for delegate async invocation when the by-reference parameter is after a non-by-reference parameter. (1313160)

  • IL2CPP: Fixed crash in il2cpp::vm::LivenessState::AddProcessObject. (1315058)

  • IL2CPP: Fixed CultureInfo.DateTimeFormat being loaded incorrectly in some locales. (1252269)

  • IL2CPP: Fixed exception when converting a method with a parameter that is an in generic parameter with a default value. (1313460)

  • IL2CPP: Fixed possible IndexOutOfRangeException with script debugging enabled. (1321876)

  • IL2CPP: Workaround a crash caused by a MSVC optimizer incorrectly reuses stack space when a stack pointer is returned via a function pointer. (1317949)

  • Linux: Fixed ArgumentException errors being thrown when clicking on the camera settings button on the scene view. (1286300)

  • Linux: Fixed broken automated test, test now passes and is re-enabled. (1252268)

  • Linux: Fixed code path that allows OnGUI() to be called before Awake() in user scripts. (1273603)

  • Linux: Fixed crash when Unity Editor was closed while running the profiler. (1278719)

  • Linux: Fixed OnGUIDepth errors that spam the console when docking and undocking the Inspector window. (1299223)

  • Linux: Fixed profiler throwing BeginSample/EndSample mismatch errors when opening preferences from the profile window while profiling. (1286545)

  • Package Manager: Fixed bug where Package Manager window In Project list would be empty for a newly created project. (1319205)

  • Particles: Fixed ParticleSystemRenderer.SetMeshes script API. (1322561)

  • Prefabs: InstantiatePrebab in the editor now calls OnTransformChildrenChanged. (1319453)

  • Scene/Game View: Fixed arc handle picking when the arc is close to parallel with the camera. (1310854)

  • Scripting: Added Flags attribute to SelectionMode enum. (1298921)

  • Scripting: Instanciation of Unity objects defined in types under more than one level of nesting should work. (1299861)

  • Search: Fixed exception thrown when closing search if started from sync button. (1315777)

  • Search: Fixed floating point search expression parsing for non US locales.

  • Search: Fixed help tips and default opening option of search window. (1315793)

  • Search: Fixed hierarchy window search returns incorrect results when using ref in the search bar. (1311273)

  • Search: Fixed search index incremental update merge issue.

  • Search: Fixed searching for settings in Search that will yield results, even when keywords order doesn't match the original string. (1321890)

  • Search: Fixed SearchService.Request when used with a non-asynchronous queries.
    See https://forum.unity.com/threads/quick-search-preview.635863/page-12#post-6907427.

  • Search: Fixed typo in PlayableScript template that created an error when Menu.GetEnabled was called on it. (1315168)

  • Search: Print a friendly error when saving an invalid search query asset. (1317448)

  • Search: Removed unchecked character from menu provider item name since it looks like a display error. (1315167)

  • Search: Updated the search provider active state when toggled in the search view provider filters dropdown. (1318459)

  • Serialization: Fixed issue where SerializedProperty.propertyPath would not return the same path when invoked multiple times with an array entry path which is no longer there. (1310571)

  • Shadergraph: Fixed a bug where synchronously compiling an unencountered shader variant for preview was causing long delays in graph updates. (1323744)

  • Shaders: Fixed regression that was dropping some shader errors from the inspector after restarting the editor. (1325521)

  • UI Toolkit: Fixed multiple errors appear after modifying ScriptableObject's array indirectly. (1303188)

  • Universal: Fixed errors when the Profiler is used with XR multipass. (1313141)

  • Video: Stereoscopic layout controls are missing in VideoPlayer and Skybox Panoramic shader. (1307239)

  • XR: Fixed deadlock when using XR + URP + D3D11 with skipPresentToMainScreen. (1323833)

  • XR: Updated the verified AR Foundation related packages to 4.1.7. Please see the AR Foundation package changelog for details.

  • XR: XRDisplaySubsystem and XRInputSubsystem now available on WebGL build target. (1283105)

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Unity 2021.1.4

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