### Known Issues in 2019.2.7f2

*   Graphics - General: Editor is lagging when modifying material properties ([1094991](https://issuetracker.unity3d.com/issues/hdrp-editor-is-lagging-when-modifying-material-properties))
    
*   Input: \[Windows\] IMGUI input doesn't work in builds when using preview InputSystem package ([1183394](https://issuetracker.unity3d.com/issues/imgui-input-doesnt-work-in-builds-when-using-preview-inputsystem-package))
    
*   Mobile: Player Settings window becomes blank and starts spitting errors after going to Android Settings > Icon ([1177292](https://issuetracker.unity3d.com/issues/player-settings-window-becomes-blank-and-starts-spitting-errors-after-going-to-android-settings-icon))
    
*   Mobile: \[Android\] Crash in java.lang.UnsatisfiedLinkError when application location is changed to SD card on Android device ([1181365](https://issuetracker.unity3d.com/issues/android-crash-in-java-dot-lang-dot-unsatisfiedlinkerror-when-application-location-is-changed-to-sd-card-on-android-device))
    
*   Physics: Crash on block\_remove when changing mesh to Plane in Skinned Mesh Renderer while cloth component attached ([1162918](https://issuetracker.unity3d.com/issues/crash-on-block-remove-when-changing-mesh-to-plane-in-skinned-mesh-renderer-while-cloth-component-attached))
    
*   Scene Management: Enabled Prefab is disabled after upgrading to Improved Prefabs ([1138224](https://issuetracker.unity3d.com/issues/enabled-prefab-is-disabled-after-upgrading-to-improved-prefabs))
    
*   Scene Management: Transform::GetWorldToLocalMatrix crash during first import when accessing Components in Prefabs ([1159905](https://issuetracker.unity3d.com/issues/transform-getworldtolocalmatrix-crash-during-first-import-when-accessing-components-in-prefabs))
    
*   Scripting: Crash on SortByExecutionOrder after setting up font kerning values when PlayerPrefs.DeleteAll() is called in Start() ([1179631](https://issuetracker.unity3d.com/issues/crash-on-sortbyexecutionorder-after-setting-up-font-kerning-values-when-playerprefs-dot-deleteall-is-called-in-start))
    
*   Scripting: Custom built DLL's scripts which have classes derived from UIBehaviour cannot be added as a component anymore ([1160664](https://issuetracker.unity3d.com/issues/custom-built-dlls-that-have-scripts-which-have-classes-derived-from-uibehaviour-cannot-be-added-as-a-component-anymore))
    
*   Scripting: Handles.Disc function performance is very slow in Scene View ([1165684](https://issuetracker.unity3d.com/issues/handles-dot-disc-function-performance-is-very-slow-in-scene-view))
    
*   Scripting: \[Templates\] Clamp BlendShapes are set to true by default when creating new projects ([1148638](https://issuetracker.unity3d.com/issues/templates-clamp-blendshapes-are-set-to-true-by-default-when-creating-new-projects))
    

### 2019.2.7f2 Release Notes

#### System Requirements Changes

Nothing changed.

#### Improvements

*   Audio: DSPGraph: Optionally allow execution of unattached subgraphs.
    
*   Shaders: Improved information about shader compilation in the profiler.
    

#### Fixes

*   Editor: Fixed an issue with the splashscreen background not being built correctly. ([1177632](https://issuetracker.unity3d.com/issues/background-image-missing-during-splash-screen), 1183041)
    
*   IL2CPP: Added support for initializing "in" parameters with constant default values. ([1174681](https://issuetracker.unity3d.com/issues/il2cpp-build-fails-if-trying-to-assign-a-default-value-to-a-functions-reference-parameter-in-keyword), 1179555)
    
*   IL2CPP: Avoid exception related to loading libc on platforms that don't support it. ([1022228](https://issuetracker.unity3d.com/issues/android-mono-il2cpp-unable-to-find-libc-error-thrown-when-executing-certain-sslstream-constructor), 1171968)
    
*   IL2CPP: Corrected the behavior of SendFile on Windows. ([1171712](https://issuetracker.unity3d.com/issues/il2cpp-socket-dot-sendfile-method-is-not-sending-file-when-the-project-is-build-using-uwp), 1176953)
    
*   IL2CPP: Corrected the reference count behavior for SafeHandle marshaling with out parameters. ([1175211](https://issuetracker.unity3d.com/issues/il2cpp-safehandle-dot-releasehandle-never-called-in-player-when-handle-is-created-via-pinvoke-as-an-out-parameter), 1177745)
    
*   IL2CPP: Prevents the creation of GC logs in non-development players. (1164367, 1178087)
    
*   iOS: Fixed a deprecated API usage warning for using UIWebView when submitting Builds to the App Store Connect. ([1180664](https://issuetracker.unity3d.com/issues/ios-apple-throws-deprecated-api-usage-warning-for-using-uiwebview-when-submitting-builds-to-the-app-store-connect), 1182272)
    
*   Linux: Fixed a stack overflow with Streamed AudioClip that caused glitching and a crash when closing the player. ([1167107](https://issuetracker.unity3d.com/issues/linux-streamed-audioclip-causes-stack-overflow-glitching-and-a-crash-when-closing-the-player), 1182314)
    
*   Linux: Fixed some popup menus from losing focus and disappearing before they are usable. ([1142911](https://issuetracker.unity3d.com/issues/linux-sprite-editor-slice-window-disappears-when-trying-to-change-slicing-type), 1144233)
    
*   Mono: Fixed an issue where recursive type definitions would fail to compile successfully. ([1147579](https://issuetracker.unity3d.com/issues/typeloadexception-errors-due-to-recursive-type-definition-when-net-4-dot-x-scripting-runtime-version-is-used), 1183773)
    
*   Physics: RRigidbody2D XY position constraints now produce an unmoving "hard" constraint and removes any performance penalty. (1176908, 1182056)
    
*   Rider: Fixed an issue with the Show editor prefs value not on external tools page.
    
*   SceneManager: Fixed a domain reload performance regression caused by Northstar. ([1161373](https://issuetracker.unity3d.com/issues/2019-dot-3-and-2019-dot-1-streams-are-significantly-slower-when-entering-the-play-mode), 1175381)
    
*   SceneManager: Fixed an issue with the right-handed copy/paste shortcuts. ([1132112](https://issuetracker.unity3d.com/issues/right-handed-copy-and-paste-doesnt-work-when-used-in-the-hierarchy), 1179582)
    
*   Scripting: Fixed an issue where recursive type definitions would fail to compile successfully. ([1147579](https://issuetracker.unity3d.com/issues/typeloadexception-errors-due-to-recursive-type-definition-when-net-4-dot-x-scripting-runtime-version-is-used), 1183773)
    
*   Scripting: Fixed trigger script compilation when define symbols or allow unsafe code are modified from a external tool. ([1171967](https://issuetracker.unity3d.com/issues/recompilation-is-not-triggered-when-projectsettings-dot-asset-file-changes-while-unity-is-open), 1179586)
    
*   Scripting: LogStringToConsole is performing too many allocations when printing to console which results in calling GC.collect() ([1174548](https://issuetracker.unity3d.com/issues/logstringtoconsole-is-performing-too-many-allocations-when-printing-to-console-which-results-in-calling-gc-dot-collect-often), 1181458)
    
*   Universal Windows Platform: Fixed a missing Pen input data with new Input System. ([1168844](https://issuetracker.unity3d.com/issues/uwp-pen-some-input-is-missing-from-the-device), 1182995)
    
*   Universal Windows Platform: Fixed an issue with the Xbox DPad not working in new Input System. ([1168836](https://issuetracker.unity3d.com/issues/uwp-xbox-dpad-does-not-work), 1183001)
    
*   Version Control: Asset store package installation now tries to open Assets for edit in Version Control when they are being replaced. (1178410, 1179969)
    
*   Windows: Fixed and issue with TLS handshake Windows/UWP when root certificate is trusted by the system but not yet in it's certificate store. ([1076758](https://issuetracker.unity3d.com/issues/uwp-https-request-fails-on-hololens), 1175309)
    

#### System Requirements

##### For development

**OS**: Windows 7 SP1+, 8, 10, 64-bit versions only; macOS 10.12+. (Server versions of Windows & OS X are not tested.)

**CPU**: SSE2 instruction set support.

**GPU**: Graphics card with DX10 (shader model 4.0) capabilities.

The rest mostly depends on the complexity of your projects.

###### Additional platform development requirements:

*   iOS: Mac computer running minimum macOS 10.12.6 and Xcode 9.4 or higher.
    
*   Android: Android SDK and Java Development Kit (JDK); IL2CPP scripting backend requires Android NDK.
    
*   Universal Windows Platform: Windows 10 (64-bit), Visual Studio 2015 with C++ Tools component or later and Windows 10 SDK
    

##### For running Unity games

Generally content developed with Unity can run pretty much everywhere. How well it runs is dependent on the complexity of your project. More detailed requirements:

*   Desktop:
    
    *   OS: Windows 7 SP1+, macOS 10.12+, Ubuntu 12.04+, SteamOS+
    *   Graphics card with DX10 (shader model 4.0) capabilities.
    *   CPU: SSE2 instruction set support.
*   iOS player requires iOS 9.0 or higher.
    
*   Android: OS 4.1 or later; ARMv7 CPU with NEON support or Atom CPU; OpenGL ES 2.0 or later.
    
*   WebGL: Any recent desktop version of Firefox, Chrome, Edge or Safari.
    
*   Universal Windows Platform: Windows 10 and a graphics card with DX10 (shader model 4.0) capabilities