Additional downloadsSelect the runtime platforms of your choice from the list below (the desktop runtime is included as standard) or, to install the full complement of runtime platforms, use the download assistant installer above.
Known Issues in 2021.1.13f1
AI: Crash with ComputeTileMeshJob when generating Navmesh (1329346)
Asset Import Pipeline: Editor crashes while exiting play mode (1328667)
Asset Importers: [MacOS] Second Unity instance in Activity Monitor is "not responding” after importing (1331736)
Audio: Crash on AudioMixer_CUSTOM_FindSnapshot when passing null as an argument to FindSnapshot() (1341752)
Global Illumination: Crash while sculpting Terrain and Baking Lightmaps (1266511)
Global Illumination: Reflection probes must be rebaked twice to update when using "Generate Lighting" button (1334283)
IL2CPP: Build fails when using a combination of messages, SyncVars and SyncList in a project (1328966)
Input: Touch Input doesn't work in Play Mode when running an Editor on a Touchscreen device (1341159)
Linux: Editor crashes at 'GfxFramebufferGLES::SetBackBufferColorDepthSurface' or freezes when creating a new shortcut profile (1334874)
Linux: Linux Editor crashes at "_XFreeX11XCBStructure" when loading tutorials (1323204)
Metal: Performance in Game View is significantly impacted by Gfx.WaitForPresentOnGfxThread when a second monitor is connected (1327408)
Mobile: [Android] App stops due to OnPixelCopyFinishedListener not being supported on devices with lower than 24 SDK (1331290)
Mobile Graphics: [iOS] Player crashing when connecting external Display via USB-C port (1321153)
Packman: User can't easily configure location of both UPM and Asset Store package local cache (1317232)
Profiling: Poor profiler performance when navigating the timeline view and reviewing data with many threads (1339407)
Quality of Life: Crash in SerializedProperty::IsValid when reordering a SerializedProperty list (1320319)
Scene Management: Crash on BuildPrefabInstanceCorrespondingObjectMap when overriding nested prefab inside AssetDatabase.StartAssetEditing() block (1324978)
Scene Management: UnassignedReferenceExeptions with unitypackage when upgrading to 2021.1.2f1 (1341523)
Scripting: Crashes on mono_class_init when entering Play Mode after recompiling scripts (1262671)
Scripting: DomainReloadTests performance tests have regressed due to removal of built-in support for Visual Studio as a code editor (1336648)
Scripting: Increased Script Assembly reload time (1323490)
Terrain: Terrain Lit Opacity as Density option causes alpha'd areas on the 5th layer or greater to appear with artifacts (1283124)
Video: Video player fails to start playing and null handle errors are thrown when running Unity Editor/Build with specific hardware (1237818)
Vulkan: Linux Editor using Vulkan crashes at " GfxDeviceVK::EnsureValidBackbuffer" when showing tooltips for ProBuilder buttons (1335846)
WebGL: [iOS] Video is not playing (1288692)
Windows: Editor crashes when exiting and keeping a tutorial project (1338299)
2021.1.13f1 Release Notes
Editor: Improved Inspector Preview performance for complex prefabs. (1295887)
Physics: Improved the stability of the HingeJoint2D angular lower/upper limits when using higher motor/external forces. (1339471)
Editor: Updated com.unity.cinemachine to versions 2.7.4/2.8.0-pre.1.
Package: Updated com.unity.purchasing to version 3.2.2.
XR: Updated OpenXR Package to version 1.2.2.
2D: Fixed missing reference on 2D default assets when upgrading project from 20.3. (1341434)
AI: Fixed an OffMeshLink and NavMeshLink issue where sometimes they are not automatically reconnected after navigation mesh carving. (1287238)
Android: Fixed an issue where there was an incorrect label for Proguard template. (1316757)
Android: Fixed an issue where all microphones reported the same recording state when bluetooth microphone was connected. (1298249)
Android: Fixed compositor error log when using linear rendering on some MediaTek/PowerVR SoCs. (1330183)
Android: Fixed severe disk I/O regression on Android 5.0.x. (1287681)
Animation: Fixed performance regression when updating curves in Animation Window. (1320250)
Asset Pipeline: Fixed an issue where "GetRequiredComponents result must be in cache, if requested from non-main thread." assert got raised, when downloading asset from cache server. (1338565)
Asset Pipeline: Fixed for loaded native assets that could get unnecessarily reloaded after a domain reload. (1323425)
Core: Fixed an issue that caused incremental garbage collection to sometimes fail to use all of the available spare time before vsync. (1329186)
Documentation: Fixed a html issue in TestRunnerApi API code snippet.
Fixed a typo in PreBuildSetup code example.
Fixed an incorrect syntax in command line reference.
Editor: Fixed an issue where the editor showed the static batching with instancing shaders warning when static batching was disabled for the current build platform. (1332277)
GI: Fixed a black baked reflection probes issue when using a non-progressive baking. (1324246)
Package Manager: Fixed the 401 Response code when a user tried to download a paid asset store package in My Assets.
Check ToS agreement before download and redirect user to Asset Store web page in order to read and accept terms. (1335976)
Particles: Fixed an occasional error message and invalid bounding box, when using the Collision Module in Planes mode. (1282268)
Scripting: Fixed a crash when generic type derives from abstract MonoBehaviour. (1333819)
Scripting: Fixed the error message displayed when drag&dropping a script file that had no matching class onto a game object. (1106237)
Scripting: Fixed Time.unscaledDeltaTime from returning negative values when OnDemandRendering was used. (1329148)
UI Elements: Fixed drawing behavior issue when multiple inspectors were opened and multiple objects were selected.
UI Toolkit: Fixed an issue with inspector fields failing to get focused when clicked depending on neighboring fields. (1335344)
UI Toolkit: Fixed an UnauthorizedAccessException error that was thrown when trying to save files under Version Control. The fix is to ensure to checkout control-versioned uss and uxml upon save. (1316724)
VFX Graph: Fixed a possible crash with sorting on particle system without kill. (1333851)
VFX Graph: Fixed an unexpected missing binding of deadElementCount dispatching sort issue. (1311837)
WebGL: Fixed an issue where Enabling "Frame Timing Stats" option in the Standalone Player Settings breaks WebGL1. (1297871)