### 2019.1.6f1 Release Notes #### System Requirements Changes Nothing changed. #### Improvements * XR: Updated Vuforia to version 8.1.11. #### Fixes * Animation: Fixed Bezier curve segments conversion to Hermite when evaluating Animation Curves with weighted tangents. ([1124522](https://issuetracker.unity3d.com/issues/weird-z-coordinate-translation-appears-when-using-weighted-tangent-on-the-animation-frame), 1143423) * Asset Import: Fixed alpha transparency enabling itself in import settings. ([1117308](https://issuetracker.unity3d.com/issues/import-settings-alpha-transparency-enables-itself), 1150834) * Asset Import: Fixed assetBundle.LoadAsset returning null when the .asset bundle file is in the same folder as all its assets. ([1140186](https://issuetracker.unity3d.com/issues/assetbundle-dot-loadasset-returns-null-when-the-asset-bundle-file-is-in-the-same-folder-as-all-its-assets), 1156153) * Editor: Fixed calling FrameTimingManager.GetVSyncsPerSecond() crashing the Editor. ([1148335](https://issuetracker.unity3d.com/issues/metal-calling-frametimingmanager-dot-getvsyncspersecond-crashes-the-editor), 1152183) * Editor: Fixed several Inspector window layouting issues. (1134112, 1155406) * Editor: Fixed Sorting Groups were not properly displayed in the Inspector Window. (1148706, 1155408) * Editor: Fixed XR SDK list custom options collapsing when selected without pressing the drop down arrow. (1142001, 1147078) * Graphics: Fixed hang during shutdown which could happen when running C# Jobs within a ScriptableRenderPipeline. ([1142765](https://issuetracker.unity3d.com/issues/graphics-editor-and-standalone-hangs-after-shutdown-when-running-c-number-jobs-within-a-scriptablerenderpipeline), 1152343) * IL2CPP: Corrected handling of exceptions in some try/finally situations. ([1136256](https://issuetracker.unity3d.com/issues/testcase-fails-on-xboxone-tries-to-execute-test-method-with-no-args), 1152171) * IL2CPP: Fixed a performance issue with lumped builds. * IL2CPP: Fixed AppleTlsProvider error on iOS when Strip Engine Code is enabled caused by incorrectly falling back to AppleTlsProvider. ([1134343](https://issuetracker.unity3d.com/issues/https-web-request-fail-with-with-notsupportedexception-could-not-find-tls-provider-mono-dot-appletls-dot-appletlsprovider), 1154766) * IL2CPP: Handled the this reference passed to a method via an in parameter. ([1143749](https://issuetracker.unity3d.com/issues/il2cpp-passing-this-to-a-method-as-an-in-parameter-causes-indexoutofrangeexception-when-building-player), 1148116) * Input: Fixed a button on knuckles controller not reporting. (1143824, 1143825) * OpenGL: Fixed Video Player Leaks GfxDriver Memory. (1136233, 1148734) * Package Manager: Fixed issues with samples display overlaps. ([1140326](https://issuetracker.unity3d.com/issues/text-is-overlaping-and-is-not-wrapped-in-buttons-in-the-the-package-manager-window), 1142540) * Particles: Added error when calling Gradient.Evalute with a NaN. ([1147106](https://issuetracker.unity3d.com/issues/no-error-provided-when-calling-gradient-dot-evaluate-nan), 1154410) * Particles: Ensure Force Fields belonging to disabled Game Objects do not affect any Particle Systems. ([1149364](https://issuetracker.unity3d.com/issues/listed-force-field-keeps-affecting-particles-when-its-gameobject-is-active-and-force-field-component-is-disabled), 1154411) * Particles: Ensure particle trails start from exact particle spawning position. ([1147999](https://issuetracker.unity3d.com/issues/shuriken-particle-trails-are-delayed-which-results-in-a-gap-if-particle-system-shape-radius-is-set-to-0-dot-0001), 1154408) * Particles: Ensured curve previews are updated when pasting component values. ([972302](https://issuetracker.unity3d.com/issues/curve-not-updated-after-component-values-are-pasted), 1154414) * Particles: Fixed a crash when a Particle System destroys itself with stop action "Destroy". ([1147642](https://issuetracker.unity3d.com/issues/unity-editor-crashes-when-the-particle-system-destroys-itself-with-stop-action-destroy), 1154409) * Particles: Fixed an assert in debug builds due to invalid sampling of an Animation Curve in a rare edge case. (1111257, 1154412) * Particles: Fixed flickering sub-emitter trails if sub-emitter particles are cleared before Particle System finishes playing. ([1146677](https://issuetracker.unity3d.com/issues/sub-emitter-trails-flicker-when-sub-emitter-particles-are-cleared-before-particlesystem-is-done-playing), 1154407) * Particles: Fixed the jitter when updating position in LateUpdate and using Custom Simulation Space. ([1149016](https://issuetracker.unity3d.com/issues/particle-system-with-custom-simulation-space-jitters-when-moved-slash-rotated-in-late-update), 1154406) * Particles: Fixed the glitches when rendering trails and using Custom Simulation Space together. ([1092072](https://issuetracker.unity3d.com/issues/custom-simulation-space-renders-ribbon-trail-particles-incorrectly), 1154413) * SceneManager: Fixed Scene view skybox toggle not working in Prefab Mode if no Prefab editing environment scene is specified. (1153083, 1154310) * SceneManager: Fixed Skybox and lighting for Prefab Mode environment scenes not working correctly. This requires the lighting settings of the environment scene to have Auto Bake disabled. ([1112978](https://issuetracker.unity3d.com/issues/the-prefab-editing-environment-skybox-and-light-data-are-ignored-when-entering-prefab-mode), 1146200) * Scripting: Fixed an issue where references to UnityEditor.iOS.Xcode might not be added to Visual Studio project files ([1129177](https://issuetracker.unity3d.com/issues/unity-does-not-add-a-reference-to-unityeditor-dot-ios-dot-xcode-for-any-project-files-except-assembly-csharp-editor), 1153081) * Scripting Upgrade: Fixed AssemblyUpdater.exe failing silently if Unity is installed to a path with spaces ([1154131](https://issuetracker.unity3d.com/issues/assemblyupdater-silently-fails-if-its-path-contains-spaces), 1154969) * Timeline: Fixed copying a Control Clip during play mode throwing exceptions. (1141581, 1150614) * Timeline: Fixed director controls being disabled in subtimelines. (1133836, 1151217) * Timeline: Fixed invalid assets in the Timeline Clipboard not being cleared when going into or out of PlayMode. (1144473, 1150593) * Timeline: Fixed issue where a Signal Emitter placed at the start of a timeline would be fired twice. ([1149653](https://issuetracker.unity3d.com/issues/signal-emitter-at-the-start-of-the-timeline-emits-twice-when-the-timeline-is-played-on-awake), 1150586) * Timeline: Fixed issue where an exception was thrown when clicking on a SignalEmitter with the Timeline window in asset mode. (1146261, 1150595) * Timeline: Fixed issue where the Emit Signal property on a Signal Emitter would not get saved correctly. ([1148709](https://issuetracker.unity3d.com/issues/timeline-changing-the-emit-signal-property-of-a-signal-emitter-does-not-mark-the-timeline-as-dirty), 1150600) * Timeline: Fixed playhead being drawn above bottom scrollbar. (1134016, 1150608) * Timeline: Fixed resizing timeline window affecting its zoom value. ([1147150](https://issuetracker.unity3d.com/issues/timeline-timeline-track-zoom-in-at-highest-upon-resizing-timeline-window), 1150589) * Timeline: Fixed Signal Asset creation dialog throwing exceptions when canceled on macOS. ([1141959](https://issuetracker.unity3d.com/issues/error-when-canceling-signal-creation-dialog), 1150602) * Timeline: Fixed snap relaxing not responding to Command on Mac, instead of Control. (1149144, 1150611) * Timeline: Fixed timeline not being played correctly when building a player with Mono and Managed Stripping Level set higher than Low. ([1133182](https://issuetracker.unity3d.com/issues/build-version-wont-display-anything), 1150583) * UI: Fixed performance issue with CanvasGroup getting notifications all the time. ([1149387](https://issuetracker.unity3d.com/issues/a-performance-issue-appears-when-sorting-a-large-amount-of-ui-objectswith-canvas-component), 1153402) * UI Elements: Fixed PropertyField layouting issue with vector data types. ([1145908](https://issuetracker.unity3d.com/issues/when-dragging-or-mouseing-over-int2-property-fields-in-a-uielements-property-constantly-flickers), 1155409) * UI Elements: Fixed UIElements not rendering on OpenGL Core 4.3 and 4.4. ([1146281](https://issuetracker.unity3d.com/issues/uielements-does-not-render-on-opengl-core-4-dot-3-and-4-dot-4), 1146291) * Version Control: Fixed Script Execution Order inspector "Apply" button in some cases throwing errors under Perforce. (1153207, 1153406) * XR: Fixed source state assert if there are no source states to get in Windows MR Gesture Recognizer. ([1152462](https://issuetracker.unity3d.com/issues/uwp-assertion-failed-on-expression-index-size-error-are-thrown-when-using-mixed-reality-toolkit-v2), 1156185)