### Known Issues in 2018.4.15f1 * Android: 64 bit Build with Physics.Processing runs at a very low FPS ([1186295](https://issuetracker.unity3d.com/issues/a-build-runs-at-a-very-low-fps-from-3-to-5-fps-on-huawei-mate-20-pro-when-the-project-is-built-with-64-bit-architecture)) * Animation: Animator.Update CPU time spikes when multiple animations are playing ([1184690](https://issuetracker.unity3d.com/issues/animator-dot-update-cpu-time-spikes-when-multiple-animations-are-playing)) * Profiling: Profiler stucks with Autoconnected Player option and can't be switched back to Editor when AndroidPlayer is selected ([1193777](https://issuetracker.unity3d.com/issues/profiler-stucks-with-autoconnected-player-option-and-cant-be-switched-back-to-editor-when-androidplayer-is-selected)) * Scene Management: Duplicated child nested prefab is not created in the same position ([1157320](https://issuetracker.unity3d.com/issues/duplicated-child-nested-prefab-is-not-created-in-the-same-position)) * Shuriken: Billboard Particle System rolls in the Game View with "Allow Roll" disabled when a Camera is rotating around it ([1081596](https://issuetracker.unity3d.com/issues/billboard-particle-system-rolls-in-the-game-view-with-allow-roll-disabled-when-a-camera-is-rotating-around-it)) * Shuriken: ParticleSystem.SetParticles crashes the Editor when writing particle list to array and Particle System has a size module enabled ([1197761](https://issuetracker.unity3d.com/issues/particlesystem-dot-setparticles-crashes-the-editor-when-writing-particle-list-to-array-and-particle-system-has-a-size-module-enabled)) * Shuriken: Semaphore.WaitForSignal causes a slow editor when entering Play mode ([1178300](https://issuetracker.unity3d.com/issues/semaphore-dot-waitforsignal-causes-a-slow-editor-when-entering-play-mode)) * uGUI: Upgrading the project results in missing System.Serializable UnityEvent function ([1196591](https://issuetracker.unity3d.com/issues/upgrading-the-project-results-in-missing-system-dot-serializable-unityevent-function)) ### 2018.4.15f1 Release Notes #### Fixes * Android: Fixed application paths (dataPath, streamingAssetsPath) to point to base apk when App Bundle is used. ([1183912](https://issuetracker.unity3d.com/issues/android-application-dot-streamingassetspath-points-to-a-wrong-directory-on-projects-built-as-aabs)) * Android: Set opaque windows for unset translucency attribute. ([1104092](https://issuetracker.unity3d.com/issues/android-preserve-framebuffer-alpha-flag-always-shows-the-phone-background)) * Animation: Fixed editor crash with WalkTypeTree when enforcing T-Pose to avatar after clearing all bones mapping. ([1092815](https://issuetracker.unity3d.com/issues/editor-crashes-with-walktypetree-when-enforcing-t-pose-to-avatar-after-clearing-all-bones-mapping)) * Deployment Management: Worker threads for Enlighten are not set up when launching a Server Build. ([1131677](https://issuetracker.unity3d.com/issues/worker-threads-for-enlighten-are-set-up-when-launching-a-server-build)) * Editor: Fixec creating an empty array in EditorBuildSettings.scenes crashing the Editor. ([1162941](https://issuetracker.unity3d.com/issues/trying-to-create-an-empty-array-in-editorbuildsettings-dot-scenes-crashes-the-editor)) * Graphics: Fixed an issue where per-platform QualitySettings could be stripped on disk when entering Playmode. ([1136244](https://issuetracker.unity3d.com/issues/default-quality-settings-are-deleted-after-creating-a-scriptable-object-in-initializeonload-class-then-entering-a-play-mode)) * Graphics: Fixed for GPU memory leak when deleting a texture while async upload in progress. (1174689) * Graphics: Fixed performance regression in Editor when processing shaders with errors. ([1193998](https://issuetracker.unity3d.com/issues/shader-editorcompilevariant-takes-a-lot-of-performance-when-shader-compilation-has-an-error)) * IL2CPP: Correctly convert certain large negative decimal values to integers on iOS. ([1178651](https://issuetracker.unity3d.com/issues/ios-system-dot-componentmodel-dot-typeconverter-dot-convertto-causes-overflowexception-on-minint)) * IL2CPP: Fixed float and double to int conversion for some values. ([1186125](https://issuetracker.unity3d.com/issues/il2cpp-double-and-float-number-values-are-different-when-uint-is-casted-on-them)) * IL2CPP: Fixed incorrect codegen when converting unsafe methods that use void\* types. ([1188101](https://issuetracker.unity3d.com/issues/il2cpp-build-development-player-fails-when-processing-unsafe-script)) * IL2CPP: Prevented a possible crash in the debugger when many web requests are started at the same time. ([1189520](https://issuetracker.unity3d.com/issues/ios-crash-on-il2cpp-mono-thread-internal-is-current-after-validating-a-certificate)) * iOS: Backported a method in trunk that fixed rotation issues for native popup windows. ([1169189](https://issuetracker.unity3d.com/issues/ios-changing-auto-rotation-settings-causes-the-first-uiwebview-to-close-immediately-with-no-callbacks)) * iOS: Fixed AVCaptureSession initialized if permission to camera has been explicitly denied by the user. ([1160639](https://issuetracker.unity3d.com/issues/the-app-crashes-and-throws-an-nsinvalidargumentexception-when-accessing-webcamtexture-dot-devices-and-permission-has-been-denied)) * iOS: Fixed crash when forcing Upside Down orientation on devices that don't support it. ([1192949](https://issuetracker.unity3d.com/issues/ios-build-crashes-when-orientation-is-set-to-portrait-upside-down-on-devices-without-home-button)) * macOS: Fixed a rare crash issue with the Editor build when creating or closing new windows. ([1151695](https://issuetracker.unity3d.com/issues/mac-os-crash-on-rendereventscontext-removecommandbuffers-when-closing-a-window)) * Particles: Don't allow bounds to be dirtied during culling callbacks, because it's too late to apply such changes for the current frame. ([1191755](https://issuetracker.unity3d.com/issues/lwrp-gettransforminfoexpectuptodate-rendererupdatemanager-dot-updateall-race-condition-error-message)) * Scripting: Keep built in assemblies after player builds when switching back to editor. ([1199323](https://issuetracker.unity3d.com/issues/2018-dot-4-builtinassemblies-dot-stamp-in-library-folder-is-not-being-regenerated-on-player-build))