Why does my inspector flicker when I type?

This is very related to a previous unanswered question I asked here: https://forum.unity.com/threads/whe...he-scrollbar-jump-to-a-different-spot.648811/ You can find all the source code there. To summarize, I have a complex script called CharacterAccessories. It has a list of items. Each element is called a CharacterAccessory. Each CharacterAccessory has an Unlockable on it. So the relationship goes like this:

CharacterAccessories -(hasMany)-> CharacterAccessory -(hasOne)-> Unlockable

I have a custom drawer on Unlockable only. When the script gets so long that it needs a scrollbar in the inspector, typing causes the inspector to flicker. Here's a GIF showing that:



When I remove the Drawer, this doesn't happen. Here's the code of the drawer:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEditor;
4. using UnityEngine;
5.  
6. [CustomPropertyDrawer(typeof(Unlockable))]
7. public class UnlockableDrawer : PropertyDrawer
8. {
9.     public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
10.     {
11.         EditorGUI.BeginProperty(position, label, property);
12.  
13.         var indent = EditorGUI.indentLevel;
14.         EditorGUI.indentLevel = 1;
15.  
16.         SerializedProperty successCountProperty = property.FindPropertyRelative("successCount");
17.         SerializedProperty needDataProperty = property.FindPropertyRelative("needData");
18.  
19.         float xPosition = position.x;
20.         var labelPosition = new Rect(xPosition, position.y, 80, EditorGUI.GetPropertyHeight(successCountProperty));
21.         xPosition += 90;
22.         var successCountRect = new Rect(xPosition, position.y, 140, EditorGUI.GetPropertyHeight(successCountProperty));
23.         xPosition += 150;
24.         var needDataRect = new Rect(xPosition, position.y, 230, EditorGUI.GetPropertyHeight(needDataProperty));
25.  
26.         var labelWidth = EditorGUIUtility.labelWidth;
27.         EditorGUIUtility.labelWidth = 110;
28.         EditorGUI.LabelField(labelPosition, new GUIContent("Unlockable"));
29.         EditorGUI.PropertyField(successCountRect, successCountProperty, new GUIContent("Success Count:"));
30.         EditorGUIUtility.labelWidth = 90;
31.         EditorGUI.PropertyField(needDataRect, needDataProperty, new GUIContent("Need Data:"));
32.         EditorGUIUtility.labelWidth = labelWidth;
33.  
34.         EditorGUI.indentLevel = indent;
35.  
36.         EditorGUI.EndProperty();
37.     }
38.  
39. }

As I said, you can find this code and all other code in my previous post. But why does the inspector flicker? Am I doing something wrong in my drawer?

 

Found a solution. Check the linked post to see.