I also have this problem. My version is 2021.3.6 (I changed the unity version to 2020, and this error has not occurred)
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You cannot call GetLast immediately after beginning a group.
UnityEngine.GUILayoutUtility:GetLastRect ()
GamingIsLove.Makinom.Editor.EditorAutomation:EndContextClick (GamingIsLove.Makinom.IBaseData,bool)
GamingIsLove.Makinom.Editor.AttributeHelper:EndFoldout (GamingIsLove.Makinom.IBaseData,GamingIsLove.Makinom.Editor.BaseEditor,bool)
GamingIsLove.Makinom.Editor.EditorAutomation:Automate (System.Reflection.FieldInfo,GamingIsLove.Makinom.IBaseData,GamingIsLove.Makinom.Editor.BaseEditor,bool,GamingIsLove.Makinom.Editor.AttributeHelper)
GamingIsLove.Makinom.Editor.EditorAutomation:Automate (GamingIsLove.Makinom.IBaseData,GamingIsLove.Makinom.Editor.BaseEditor,bool)
GamingIsLove.Makinom.Editor.EditorAutomation:Value (object&,System.Reflection.FieldInfo,System.Type,GamingIsLove.Makinom.Editor.AttributeHelper,GamingIsLove.Makinom.EditorHelpAttribute,GamingIsLove.Makinom.IBaseData,GamingIsLove.Makinom.Editor.BaseEditor,bool)
GamingIsLove.Makinom.Editor.EditorAutomation:Field (System.Reflection.FieldInfo,GamingIsLove.Makinom.Editor.AttributeHelper,GamingIsLove.Makinom.IBaseData,GamingIsLove.Makinom.Editor.BaseEditor,bool)
GamingIsLove.Makinom.Editor.EditorAutomation:Automate (System.Reflection.FieldInfo,GamingIsLove.Makinom.IBaseData,GamingIsLove.Makinom.Editor.BaseEditor,bool,GamingIsLove.Makinom.Editor.AttributeHelper)
GamingIsLove.Makinom.Editor.EditorAutomation:Automate (GamingIsLove.Makinom.IBaseData,GamingIsLove.Makinom.Editor.BaseEditor)
GamingIsLove.Makinom.Editor.UISystemSettingsTab:ShowSettings ()
GamingIsLove.Makinom.Editor.BaseEditorTab:ShowTab ()
GamingIsLove.Makinom.Editor.BaseEditorSection:ShowTab ()
GamingIsLove.Makinom.Editor.MakinomEditorWindow:OnGUI ()
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)
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Can you give me details on where you got the error in the editor?
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Will be fixed in the next update.
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