any thoughts on this one ?
LWObject.OnEnable must call base.OnEnable to avoid unexpected behaviour.
UnityEditor.Experimental.AssetImporters.AssetImporterEditor:OnDisable() (at C:/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/AssetImporterEditor.cs:423)
Unity 2019.2.8.f1, when you select and LWO in the project view tree in unity.
got this as well on reimport
OnInspectorGUI should call serializedObject.Update() at its beginning and serializedObject.ApplyModifiedProperties() before calling ApplyRevertGUI() method.
UnityEditor.Experimental.AssetImporters.AssetImporterEditor:ApplyRevertGUI()
VirtualEscapes.Common.Importers.LWO.LWObject:OnInspectorGUI() (at Assets/Lightwave Importer/LWO Importer/Code/Editor/LWObject.cs:194)
UnityEngine.GUIUtility

rocessEvent(Int32, IntPtr) (at C:/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:179)