This seems to have been introduced in earlier versions of 2021.1.x and was fixed but when you have the Substance plugin installed, you still get the error.
Based on the other threads, I'm going to guess that we need to wait for the new version of Substance.
See the original defect:
https://issuetracker.unity3d.com/issues/2d-propeties-of-an-image-cant-be-changed-if-changes-are-applied-through-popupsVerified the issue on:Unity Editor - 2021.1.6 and 2021.1.7
Substance in Unity Plugin - 2.4.5 and 2.5.4
MacOS (based on the original defect, it seemed to be a defect that affected Macs only)
Steps to reproduce:- Install Unity 2021.1.7
- Install Substance Plugin 2.4.5
- Import any image
- Select the image in the editor
See the following error:
InvalidCastException: Specified cast is not valid.
at UnityEditor.TextureImporterInspector.get_textureInspector () [0x00000] in /Users/bokken/buildslave/unity/build/Editor/Mono/ImportSettings/TextureImporterInspector.cs:119
at UnityEditor.TextureImporterInspector.DrawPreview (UnityEngine.Rect previewArea) [0x00009] in /Users/bokken/buildslave/unity/build/Editor/Mono/ImportSettings/TextureImporterInspector.cs:1597
at UnityEditor.PropertyEditor.DrawPreviewAndLabels () [0x0050f] in /Users/bokken/buildslave/unity/build/Editor/Mono/Inspector/PropertyEditor.cs:1310
at UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) [0x001df] in /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.u
i/Core/IMGUIContainer.cs:346
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
UnityEngine.UIElements.IMGUIContainer:DoOnGUI(Event, Matrix4x4, Rect, Boolean, Rect, Action, Boolean) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:360)
UnityEngine.UIElements.IMGUIContainer:DoMeasure(Single, MeasureMode, Single, MeasureMode) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:815)
UnityEngine.UIElements.VisualElement:Measure(YogaNode, Single, YogaMeasureMode, Single, YogaMeasureMode) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualElement.cs:1539)
UnityEngine.UIElements.VisualElement:<AssignMeasureFunction>b__203_0(YogaNode, Single, YogaMeasureMode, Single, YogaMeasureMode) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualElement.cs:1523)
UnityEngine.Yoga.YogaNode:MeasureInternal(YogaNode, Single, YogaMeasureMode, Single, YogaMeasureMode) (at /Users/bokken/buildslave/unity/build/External/Yoga/csharp/Facebook.Yoga/YogaNode.cs:689)
UnityEngine.Yoga.Native:YGNodeMeasureInvoke(YogaNode, Single, YogaMeasureMode, Single, YogaMeasureMode, IntPtr) (at /Users/bokken/buildslave/unity/build/External/Yoga/csharp/Facebook.Yoga/YogaNative.bindings.cs:146)
UnityEngine.Yoga.Native:YGNodeCalculateLayout(IntPtr, Single, Single, YogaDirection)
UnityEngine.Yoga.YogaNode:CalculateLayout(Single, Single) (at /Users/bokken/buildslave/unity/build/External/Yoga/csharp/Facebook.Yoga/YogaNode.cs:665)
UnityEngine.UIElements.UIRLayoutUpdater:Update() (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Renderer/UIRLayoutUpdater.cs:51)
UnityEngine.UIElements.VisualTreeUpdater:UpdateVisualTreePhase(VisualTreeUpdatePhase) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/VisualTreeUpdater.cs:155)
UnityEngine.UIElements.Panel:UpdateForRepaint() (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Panel.cs:940)
UnityEngine.UIElements.Panel:Repaint(Event) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Panel.cs:985)
UnityEngine.UIElements.UIElementsUtility:DoDispatch(BaseVisualElementPanel) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:446)
UnityEngine.UIElements.UIElementsUtility:UnityEngine.UIElements.IUIElementsUtility.ProcessEvent(Int32, IntPtr, Boolean&) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:209)
UnityEngine.UIElements.UIEventRegistration:ProcessEvent(Int32, IntPtr) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:74)
UnityEngine.UIElements.<>c:<.cctor>b__1_2(Int32, IntPtr) (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:28)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&) (at /Users/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)
(Filename: /Users/bokken/buildslave/unity/build/Editor/Mono/ImportSettings/TextureImporterInspector.cs Line: 119)
