Using the completed 3d playground project when I try to use the drop-down menu to change battle type (or any other drop-down) I get this:
GUI Window tried to begin rendering while something else had not finished rendering! Either you have a recursive OnGUI rendering, or the previous OnGUI did not clean up properly.
UnityEditor.PopupWindow:Show (UnityEngine.Rect,UnityEditor.PopupWindowContent)
GamingIsLove.Makinom.Editor.EditorAssetSelectionPopupField:Edit (UnityEngine.GUIContent,GamingIsLove.Makinom.AssetSource&,string,GamingIsLove.Makinom.Editor.AttributeHelper,GamingIsLove.Makinom.Editor.BaseEditor)
GamingIsLove.Makinom.Editor.BaseEditor:AssetSelectionField (UnityEngine.GUIContent,GamingIsLove.Makinom.AssetSource&,string,GamingIsLove.Makinom.Editor.AttributeHelper)
GamingIsLove.Makinom.Editor.AssetSourceEditor:Edit (GamingIsLove.Makinom.AssetSource&,GamingIsLove.Makinom.Editor.AttributeHelper,GamingIsLove.Makinom.Editor.BaseEditor)
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.BaseEditorTab:ShowSettings ()
GamingIsLove.Makinom.Editor.GenericAssetListTab`2<GamingIsLove.ORKFramework.BattleSystemAsset, GamingIsLove.ORKFramework.BattleSystem>:ShowTab ()
GamingIsLove.Makinom.Editor.BaseEditorSection:ShowTab ()
GamingIsLove.Makinom.Editor.MakinomEditorWindow:OnGUI ()
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)
and this
MissingReferenceException: The object of type 'ContainerWindow' has been destroyed but you are still trying to access it.
Your script should either check if it is null or you should not destroy the object.
UnityEditor.ContainerWindow.FitWindowRectToScreen (UnityEngine.Rect r, System.Boolean forceCompletelyVisible, System.Boolean useMouseScreen) (at <23c3fa44608b45eba95f1c55cea68870>:0)
UnityEditor.ContainerWindow.ShowPopupWithMode (UnityEditor.ShowMode mode, System.Boolean giveFocus) (at /home/bokken/buildslave/unity/build/Editor/Mono/ContainerWindow.cs:125)
UnityEditor.EditorWindow.ShowPopupWithMode (UnityEditor.ShowMode mode, System.Boolean giveFocus) (at /home/bokken/buildslave/unity/build/Editor/Mono/EditorWindow.cs:517)
UnityEditor.EditorWindow.ShowAsDropDown (UnityEngine.Rect buttonRect, UnityEngine.Vector2 windowSize, UnityEditor.PopupLocation[] locationPriorityOrder, UnityEditor.ShowMode mode, System.Boolean giveFocus) (at /home/bokken/buildslave/unity/build/Editor/Mono/EditorWindow.cs:575)
UnityEditor.PopupWindow.Init (UnityEngine.Rect activatorRect, UnityEditor.PopupWindowContent windowContent, UnityEditor.PopupLocation[] locationPriorityOrder, UnityEditor.ShowMode showMode, System.Boolean giveFocus) (at /home/bokken/buildslave/unity/build/Editor/Mono/GUI/PopupWindow.cs:102)
UnityEditor.PopupWindow.Show (UnityEngine.Rect activatorRect, UnityEditor.PopupWindowContent windowContent, UnityEditor.PopupLocation[] locationPriorityOrder, UnityEditor.ShowMode showMode) (at /home/bokken/buildslave/unity/build/Editor/Mono/GUI/PopupWindow.cs:71)
UnityEditor.PopupWindow.Show (UnityEngine.Rect activatorRect, UnityEditor.PopupWindowContent windowContent, UnityEditor.PopupLocation[] locationPriorityOrder) (at /home/bokken/buildslave/unity/build/Editor/Mono/GUI/PopupWindow.cs:44)
UnityEditor.PopupWindow.Show (UnityEngine.Rect activatorRect, UnityEditor.PopupWindowContent windowContent) (at /home/bokken/buildslave/unity/build/Editor/Mono/GUI/PopupWindow.cs:39)
GamingIsLove.Makinom.Editor.EditorAssetSelectionPopupField.Edit (UnityEngine.GUIContent content, GamingIsLove.Makinom.AssetSource& selection, System.String helpInfo, GamingIsLove.Makinom.Editor.AttributeHelper attributes, GamingIsLove.Makinom.Editor.BaseEditor baseEditor) (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.BaseEditor.AssetSelectionField (UnityEngine.GUIContent content, GamingIsLove.Makinom.AssetSource& selection, System.String helpInfo, GamingIsLove.Makinom.Editor.AttributeHelper attributes) (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.AssetSourceEditor.Edit (GamingIsLove.Makinom.AssetSource& asset, GamingIsLove.Makinom.Editor.AttributeHelper attributes, GamingIsLove.Makinom.Editor.BaseEditor baseEditor) (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.EditorAutomation.Value (System.Object& value, System.Reflection.FieldInfo fieldInfo, System.Type type, GamingIsLove.Makinom.Editor.AttributeHelper attributes, GamingIsLove.Makinom.EditorHelpAttribute help, GamingIsLove.Makinom.IBaseData instance, GamingIsLove.Makinom.Editor.BaseEditor baseEditor, System.Boolean ignoreHide) (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.EditorAutomation.Field (System.Reflection.FieldInfo fieldInfo, GamingIsLove.Makinom.Editor.AttributeHelper attributes, GamingIsLove.Makinom.IBaseData instance, GamingIsLove.Makinom.Editor.BaseEditor baseEditor, System.Boolean ignoreHide) (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.EditorAutomation.Automate (System.Reflection.FieldInfo fieldInfo, GamingIsLove.Makinom.IBaseData instance, GamingIsLove.Makinom.Editor.BaseEditor baseEditor, System.Boolean ignoreHide, GamingIsLove.Makinom.Editor.AttributeHelper attributes) (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.EditorAutomation.Automate (GamingIsLove.Makinom.IBaseData instance, GamingIsLove.Makinom.Editor.BaseEditor baseEditor) (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.BaseEditorTab.ShowSettings () (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.GenericAssetListTab`2[T,V].ShowTab () (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.BaseEditorSection.ShowTab () (at <79661dfa90e24f2491098ab266ed6dc5>:0)
GamingIsLove.Makinom.Editor.MakinomEditorWindow.OnGUI () (at <79661dfa90e24f2491098ab266ed6dc5>:0)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at /home/bokken/buildslave/unity/build/Editor/Mono/HostView.cs:403)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect) (at /home/bokken/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:381)
UnityEditor.DockArea.OldOnGUI () (at /home/bokken/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:372)
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) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:353)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:663)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Action onGUIHandler, System.Boolean canAffectFocus) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:635)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:628)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUIRaw (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus, System.Boolean verifyBounds) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:594)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus, System.Boolean verifyBounds) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:583)
UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/IMGUIContainer.cs:516)
UnityEngine.UIElements.EventDispatchUtilities.PropagateEvent (UnityEngine.UIElements.EventBase evt) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Events/IEventDispatchingStrategy.cs:113)
UnityEngine.UIElements.MouseEventDispatchingStrategy.SendEventToRegularTarget (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Events/MouseEventDispatchingStrategy.cs:35)
UnityEngine.UIElements.MouseEventDispatchingStrategy.SendEventToTarget (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Events/MouseEventDispatchingStrategy.cs:26)
UnityEngine.UIElements.MouseEventDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel iPanel) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Events/MouseEventDispatchingStrategy.cs:19)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/EventDispatcher.cs:373)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/EventDispatcher.cs:336)
UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/EventDispatcher.cs:299)
UnityEngine.UIElements.EventDispatcher.OpenGate () (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/EventDispatcher.cs:264)
UnityEngine.UIElements.EventDispatcherGate.Dispose () (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/EventDispatcher.cs:75)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/EventDispatcher.cs:364)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/EventDispatcher.cs:216)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/Panel.cs:372)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:461)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:209)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:74)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Core/UIElementsUtility.cs:28)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at /home/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)