On Creating Preset of RecorderSettingPreset and then after deleting 'RecorderSettingPreset' and selecting 2nd preset causes editor console spam with NullReferenceException. Refer attached video and stack trace. Steps to reproduce:
1) Create a new project
2) Window > Package Manager > Install Unity Recorder
3) Recorder burger menu > Save Recorder list
4) Select RecorderSettingPreset > Inspector > Create Preset
5) Preject >Delete Select RecorderSettingPreset and select 2nd Preset Actual result: NullReferenceException is thrown on deleting RecorderSettingPreset. Expected result: On deleting RecorderSettingPreset, no error should be thrown in console. Occurring in: 2021.2.0a5, 2021.1.0b7, 2021.1.0a1, 2020.2.3f1, 2020.1.17f1, 2019.4.16f1 with pkg version Version 2.5.4 Environment: Both Windows and Mac Stack Trace: NullReferenceException: Object reference not set to an instance of an object UnityEditor.Recorder.RecorderControllerSettingsPresetEditor.OnInspectorGUI () (at

[Library/PackageCache/com.unity.recorder@2.5.4|mailto:Library/PackageCache/com.unity.recorder@2.5.4]

/Editor/Sources/RecorderControllerSettingsPresetEditor.cs:48) UnityEditor.Presets.PresetEditor.DrawInternalInspector () (at /Users/bokken/buildslave/unity/build/Modules/PresetsEditor/PresetEditor.cs:303) UnityEditor.Presets.PresetEditor.DrawPresetData () (at /Users/bokken/buildslave/unity/build/Modules/PresetsEditor/PresetEditor.cs:119) UnityEditor.Presets.PresetEditor.OnInspectorGUI () (at /Users/bokken/buildslave/unity/build/Modules/PresetsEditor/PresetEditor.cs:107) UnityEditor.UIElements.InspectorElement+<>c__DisplayClass59_0.<CreateIMGUIInspectorFromEditor>b__0 () (at /Users/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Editor/Inspector/InspectorElement.cs:625) UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&) (at /Users/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)