### Known Issues in 2023.1.6f1 - Asset Importers: Console displays warning about importing c4d files when a Scripted Importer for c4d files is implemented ([UUM-36242](https://issuetracker.unity3d.com/issues/console-displays-warning-about-importing-c4d-files-when-a-scripted-importer-for-c4d-files-is-implemented)) - Asset Importers: OnImportAsset leaks 5GB of memory ([UUM-43067](https://issuetracker.unity3d.com/issues/onimportasset-leaks-5gb-of-memory)) - Contextual Menu: [TextMeshPro] "CONTEXT" menu item appears and Editor crashes when TMP 3.2.0-pre.4 package is imported ([UUM-40410](https://issuetracker.unity3d.com/issues/textmeshpro-context-menu-item-appears-and-editor-crashes-when-tmp-3-dot-2-0-pre-dot-4-package-is-imported)) - Graphics Device Features: Severe performance degradation in Play Mode when using multiple Cameras with "Direct3D12", "OpenGLCore", and "OpenGLES3" Graphics APIs in URP & HDRP ([UUM-42795](https://issuetracker.unity3d.com/issues/severe-performance-degradation-in-play-mode-when-using-multiple-cameras-with-direct3d12-openglcore-and-opengles3-graphics-apis-in-urp-and-hdrp)) - HD RP: The Editor becomes unresponsive and the machine performs worse when the Editor is opened ([UUM-34562](https://issuetracker.unity3d.com/issues/the-editor-becomes-unresponsive-and-the-machine-performs-worse-when-the-editor-is-opened)) - Input: The device selection menu does not respond to mouse clicks when trying to add a device in a Control Scheme ([UUM-40635](https://issuetracker.unity3d.com/issues/the-device-selection-menu-does-not-respond-to-mouse-clicks-when-trying-to-add-a-device-in-a-control-scheme)) - iOS: App freezes and the "You can attach a managed debugger now if you want" message doesn't show up when running the app on iOS devices with the "Wait For Managed Debugger" setting enabled ([UUM-39644](https://issuetracker.unity3d.com/issues/ios-app-freezes-and-the-you-can-attach-a-managed-debugger-now-if-you-want-message-doesnt-show-up-when-running-the-app-on-ios-devices-with-the-wait-for-managed-debugger-setting-enabled)) - MacOS: Crash on objc_msgSend when the Editor UI gets redrawn ([UUM-34202](https://issuetracker.unity3d.com/issues/macos-crash-on-objc-msgsend-when-ui-gets-redrawn)) - Metal: Editor freezes when exiting Play Mode if the Game window position was changed or undocked during Play Mode ([UUM-36218](https://issuetracker.unity3d.com/issues/editor-freezes-when-exiting-play-mode-if-the-game-window-position-was-changed-or-undocked-during-play-mode)) - Metal: [iOS] Rendering freezes when the orientation is changed ([UUM-9480](https://issuetracker.unity3d.com/issues/ios-rendering-freezes-when-the-orientation-is-changed)) - Native Window Management: Crash on core::Join > & __ptr64,char const (& __ptr64)[2],core::basic_string_ref > when the Editor runs out of memory saving an invalid override ([UUM-36776](https://issuetracker.unity3d.com/issues/crash-on-core-join-core-basic-string-char-core-stringstoragedefault-and-ptr64-char-const-and-ptr64-2-core-basic-string-ref-when-the-editor-runs-out-of-memory-saving-an-invalid-override)) - Progressive Lightmapper: Light Probe GPU memory is not deallocated when cancelling a bake ([UUM-41988](https://issuetracker.unity3d.com/issues/light-probe-gpu-memory-is-not-deallocated-when-cancelling-a-bake)) - Scene/Game View: Button triggers another Button when multiple Canvases are used in multiple windows ([UUM-36255](https://issuetracker.unity3d.com/issues/button-triggers-another-button-when-multiple-canvases-are-used-in-multiple-windows)) - Serialization: Crash on SerializedProperty_CUSTOM_GetStringValueInternal when renaming a ScriptableObject Asset ([UUM-41704](https://issuetracker.unity3d.com/issues/crash-on-serializedproperty-custom-getstringvalueinternal-when-renaming-a-scriptableobject-asset)) - UI Toolkit Framework: Unity Editor is rendered without the toolbar icons when using it on old hardware with integrated GPU ([UUM-13134](https://issuetracker.unity3d.com/issues/unity-editor-is-rendered-without-the-toolbar-icons-when-using-it-on-old-hardware-with-integrated-gpu)) - Universal RP: RTHandles in URP causes memory allocation in multi-camera scenarios ([UUM-19089](https://issuetracker.unity3d.com/issues/urp-memory-leak-when-in-play-mode)) - Universal RP: [URP][XR] Performance degradation when comparing Android Quest 2 builds across 2020.3 and 2023.x ([UUM-33025](https://issuetracker.unity3d.com/issues/urp-xr-performance-degradation-when-comparing-android-quest-2-builds-across-2020-dot-3-and-2023-dot-x)) - Visual Effects: Crash on ShowDelayedContextMenu(bool) when VFX Graph has an unassigned graphics buffer ([UUM-33819](https://issuetracker.unity3d.com/issues/crash-on-showdelayedcontextmenu-bool-when-vfx-graph-has-an-unassigned-graphics-buffer)) ### 2023.1.6f1 Release Notes #### Fixes - Build System: Fixed pigz-mac-aarch64 artifact \(previously was a linux binary instead\). ([UUM-42368](https://issuetracker.unity3d.com/issues/pigz-mac-aarch64-slash-2-dot-6-9ff9290d6c66-dot-dot-dot-is-a-linux-binary)) - Editor: Device Simulator now respects the WaitForEndOfFrame yield instruction when used in combination with Application.targetFramerate. ([UUM-40051](https://issuetracker.unity3d.com/issues/waitforendofframe-with-application-dot-targetframerate-set-produces-different-results-when-comparing-game-view-with-device-simulator-view)) - Editor: Fixed CPU usage not reducing when un-focusing editor if a tab is undocked. ([UUM-35177](https://issuetracker.unity3d.com/issues/editor-windows-cpu-usage-does-not-reduce-when-unfocusing-editor-if-a-tab-is-undocked)) - Editor: Fixed modal windows are blank when opened. ([UUM-927](https://issuetracker.unity3d.com/issues/backport-macos-modal-window-is-blank-when-opened)) - Editor: Frame Debugger: Fixed an issue where scrolling in the window didn't work when the Mesh Preview was being used. ([UUM-27586](https://issuetracker.unity3d.com/issues/cannot-scroll-up-slash-down-a-frame-debugger-event-panel-when-mesh-preview-is-open)) - Graphics: Made Always/Vertex pass to be accepted by the ForwardRenderer loop and receive the main light's screenspace shadowmap. (UUM-36912) - Networking: UnityWebRequest texture download will now create the texture with mipmaps. ([UUM-26628](https://issuetracker.unity3d.com/issues/no-mipmaps-are-created-when-using-unitywebrequesttexture-dot-gettexture)) - Physics: Fixed small bodies starting to tunnel through large bodies in continuous collision detection mode at high simulation frequencies \(~200Hz\). ([UUM-19349](https://issuetracker.unity3d.com/issues/objects-are-not-colliding-when-time-dot-fixeddeltatime-is-smaller-or-equal-to-5-ms)) - UI Toolkit: Fixed EnumField not updating its displayed text when changing back from showMixedValue mode. ([UUM-41395](https://issuetracker.unity3d.com/issues/enumfield-remains-displayed-as-a-mixed-string-when-showmixedvalue-is-set-back-to-false-and-setvaluewithoutnotify-is-used)) - UI Toolkit: Fixed PropertyField resolving the wrong type when showing an ObjectField and a class had the same name as a built-in type. ([UUM-29499](https://issuetracker.unity3d.com/issues/type-mismatch-is-assigned-to-the-mesh-filter-component-instead-of-the-mesh-when-there-is-a-mesh-script-in-the-project)) - Universal RP: Fixed an issue where incorrect Shader Keyword Prefiltering was used with SSAO when AfterOpaque was used. - Universal RP: Fixed an issue where rendering layers keywords were not enabled correctly when using Decals & SSAO in Deferred. ([UUM-39831](https://issuetracker.unity3d.com/issues/decal-is-not-drawn-when-using-deferred-rendering-a-rendering-layer-and-screen-space-ambient-occlusion)) - Universal RP: Fixed Native RenderPass errors when using RenderingLayers. ([UUM-34728](https://issuetracker.unity3d.com/issues/android-universal-rp-lens-flares-are-corruptly-rendered-when-rendering-path-is-deferred-with-native-renderpass-enabled))