How to reproduce:
1. Download the attached project
2. Select the "Square" game object
3. Drag the "GradientMaterialPropertyBlock" script to the Inspector window
4. Change the component's "Property Name" value to "_MainTex"
5. Observe the crash

Reproducible with: 2020.3.46f1, 2021.3.21f1, 2022.2.11f1, 2023.1.0b8, 2023.2.0a6

Stack trace:
Obtained 256 stack frames.
#0 0x00000109abe163 in Shader::FindPropertyIndex(char const*) const
#1 0x0000010757911c in Shader_CUSTOM_FindPropertyIndex(ScriptingBackendNativeObjectPtrOpaque*, ScriptingBackendNativeStringPtrOpaque*)
#2 0x00000168ba412c in (wrapper managed-to-native) UnityEngine.Shader:FindPropertyIndex (UnityEngine.Shader,string) [{0x7fe35cc499f8} + 0x8c] (0x168ba40a0 0x168ba420b) [0x1515c3a80 - Unity Child Domain]
#3 0x00000154d6bc9c in mono_jit_runtime_invoke
#4 0x00000154f212e3 in do_runtime_invoke
#5 0x00000154f21220 in mono_runtime_invoke
#6 0x000001081e08e7 in scripting_method_invoke(ScriptingMethodPtr, ScriptingObjectPtr, ScriptingArguments&, ScriptingExceptionPtr*, bool)
#7 0x000001081bcbe6 in ScriptingInvocation::Invoke(ScriptingExceptionPtr*, bool)
#8 0x000001081bcab6 in ScriptingInvocation::InvokeChecked(ScriptingExceptionPtr*)
#9 0x000001082692a4 in SerializableManagedRef::CallMethod(Object&, ScriptingMethodPtr)
#10 0x00000108182230 in MonoBehaviour::CheckConsistency()
#11 0x0000010928fd26 in SerializedObject::ApplyToFirstObject()
#12 0x00000109290c33 in SerializedObject::ApplyModifiedPropertiesWithoutUndo()
#13 0x000001078b4c07 in SerializedObject_CUSTOM_ApplyModifiedProperties(ScriptingBackendNativeObjectPtrOpaque*)
#14 0x000001ae385759 in (wrapper managed-to-native) UnityEditor.SerializedObject:ApplyModifiedProperties (UnityEditor.SerializedObject) [{0x7fe35bed2d50} + 0x89] (0x1ae3856d0 0x1ae38583b) [0x1515c3a80 - Unity Child Domain]
#15 0x000001ae386f28 in UnityEditor.UIElements.InspectorElement/<>c__DisplayClass59_0:<CreateIMGUIInspectorFromEditor>b__0 () [{0x7fe35babb8c8} + 0x918] [/Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Editor/Inspector/InspectorElement.cs :: 631u] (0x1ae386610 0x1ae387446) [0x1515c3a80 - Unity Child Domain]
#16 0x00000169a008e8 in UnityEngine.UIElements.IMGUIContainer:DoOnGUI (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,bool,UnityEngine.Rect,System.Action,bool) [{0x7fe390efadc8} + 0x8e8] [/Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/IMGUIContainer.cs :: 352u] (0x169a00000 0x169a0189b) [0x1515c3a80 - Unity Child Domain]
#17 0x000001897fb34b in UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,System.Action,bool) [{0x7fe390efafa8} + 0x35b] [/Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/IMGUIContainer.cs :: 695u] (0x1897faff0 0x1897fb51a) [0x1515c3a80 - Unity Child Domain]
#18 0x000001a75edbb3 in UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,System.Action,bool) [{0x7fe390efaf80} + 0x113] [/Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/IMGUIContainer.cs :: 665u] (0x1a75edaa0 0x1a75edbe2) [0x1515c3a80 - Unity Child Domain]
#19 0x000001a75eda63 in UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,bool) [{0x7fe390efaf58} + 0x33] [/Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/IMGUIContainer.cs :: 658u] (0x1a75eda30 0x1a75eda70) [0x1515c3a80 - Unity Child Domain]
#20 0x000001a75ed4eb in UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUI (UnityEngine.UIElements.EventBase,bool,bool) [{0x7fe390efae40} + 0x5eb] [/Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/IMGUIContainer.cs :: 607u] (0x1a75ecf00 0x1a75ed50d) [0x1515c3a80 - Unity Child Domain]
#21 0x00000000000000 in (Unknown)
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